People development
What Is a Scorecard? Criteria, Levels, Limits
A conversation scorecard is an evaluation rubric set before the call: named criteria, described levels, and evidence from the transcript for every rating.
Philipp Heideker15 min read
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People development
Practice Without an Audience: Role Plays
Role plays in training rarely fail on method. They fail because safety and repetition compete for the same scarce resource in a training room.
Philipp Heideker12 min read
Explore All
Practical writing on sales training, coaching and onboarding – from the team that works with sales organisations every day.
People development
What Is a Scorecard? Criteria, Levels, Limits
A conversation scorecard is an evaluation rubric set before the call: named criteria, described levels, and evidence from the transcript for every rating.
Philipp Heideker15 min read
People development
Practice Without an Audience: Role Plays
Role plays in training rarely fail on method. They fail because safety and repetition compete for the same scarce resource in a training room.
Philipp Heideker12 min read
People development
Learning Transfer: Why Training Rarely Sticks
Learning transfer fails because nobody schedules the practice phase between the classroom and the real conversation. Here is what the evidence supports.
Philipp Heideker12 min read
AI coaching & training
What Is an AI Coach? Definition, Scope and Limits
An AI coach is software that develops employees at work: it explains, has them practice, and scores every attempt against a standard a leader defined.
Philipp Heideker15 min read
AI coaching & training
Building Believable Counterparts: What Makes an AI Persona Work
A believable AI persona needs no long backstory. What matters is a clear goal, realistic resistance and consistent behaviour through the conversation.
Philipp Heideker12 min read
AI coaching & training
What Is an AI Role Play? Definition, Process and Limits
An AI role play is a spoken practice conversation with a virtual counterpart, evaluated against a defined standard. Here is how the format works.
Philipp Heideker12 min read
People development
Deliberate Practice at Work: Why One Training Session Rarely Changes Behavior
Deliberate practice turns knowledge into behavior through application, feedback and another attempt. The hard part is creating enough chances to practise.
Philipp Heideker13 min read
News
Sleak as a Guest of DKB at the Rexel Super Cup 2026
Two handball games at the SAP Garden, plenty of conversations about AI in training and people development – and one question that stayed with us.
Lennard Greve3 min read
Knowledge & onboarding
How Do You Verify Someone Actually Understood a Methodology?
A finished course proves attendance, not understanding. How to verify that someone can apply a methodology, and how to turn that into real evidence.
Philipp Heideker14 min read
AI coaching & training
How to Practice Difficult Patient Conversations
A 20-minute drill with a scenario card and an observation sheet turns difficult patient conversations practice into real repetitions.
Philipp Heideker15 min read
Knowledge & onboarding
How Do You Make Sure Your Team Actually Masters Product Knowledge?
Product knowledge exists when a person can retrieve and explain it under questioning, not when they receive a document or pass a test.
Philipp Heideker14 min read
News
Sleak Wins the Open Bosch Award 2026
This week, Sleak was named the winner of this year's Open Bosch Award together with Bosch Power Tools, for AI-powered negotiation coaching.
Lennard Greve5 min read
AI coaching & training
Can AI Replace Human Sales Coaches? The Honest Answer
Can AI replace human sales coaches? No. It replaces the repetitive parts of coaching and frees humans for judgment, relationship, and the hard conversations.
Philipp Heideker10 min read
AI coaching & training
AI Coaching Platform for Enterprises: The Selection Criteria That Actually Matter
How to choose an AI coaching platform for enterprises in 2026: the difference from an LMS, and the seven criteria DACH buyers weigh most.
Philipp Heideker10 min read
AI coaching & training
Training Difficult Patient Conversations in Healthcare
Doctors and nurses can rehearse difficult patient conversations in AI simulations that are safe, measurable and GDPR-compliant.
Philipp Heideker13 min read
People development
People Development at Scale: The Capability Every Enterprise Underinvests In
People development at scale is the capability to turn knowing into doing across a whole workforce. Why enterprises underinvest in it, and how to build it.
Philipp Heideker16 min read
People development
Why Sales Training Gets Forgotten: The 70/87 Percent Trap in L&D
Sales teams forget 70 to 87 percent of training content within 90 days. Here is why the forgetting curve wins, and what layer actually stops it.
Philipp Heideker17 min read
People development
Completion Is Not Competence: Why Every L&D Metric You Report Is Wrong
Completion rate is the wrong way to measure training effectiveness. The honest L&D metric stack: capability movement, behavior trend, and revenue link.
Philipp Heideker18 min read
People development
Rolling Out Scorecard-Based Coaching in 8 Weeks: The Playbook
A practical 8-week playbook for rolling out scorecard-based coaching: design, calibration, pilot, manager enablement, and proving ROI in one quarter.
Philipp Heideker13 min read
People development
Scorecard-Based Coaching: How Structured Feedback Transforms Sales Training
Scorecard-based coaching makes sales excellence definable and feedback reproducible. Method, structure, common mistakes, and the role of AI.
Philipp Heideker13 min read
GDPR & compliance
GDPR-Compliant AI Sales Training: How Anonymized Practice Sessions Work
GDPR-compliant AI sales training works by architecturally separating identity from training data. How anonymized practice sessions actually run, step by step.
Philipp Heideker13 min read
GDPR & compliance
GDPR-Compliant AI Coaching: What to Check When Choosing a Platform
The 5 criteria an AI coaching platform must meet to be GDPR-compliant. A checklist for data protection, IT security, and HR teams in the EU.
Philipp Heideker13 min read
AI coaching & training
AI-Powered Training in the Enterprise: How Companies Roll Out AI Coaching Successfully
Enterprise AI coaching in 2026: requirements, rollout phases, costs, common mistakes, and how to measure success across a large organization.
Philipp Heideker12 min read
AI coaching & training
AI Negotiation Training for Procurement: 7 Methods Compared for Sourcing Teams
AI negotiation training for procurement in 2026: 7 methods compared, from classroom to AI simulation. Costs, scalability, measurability and GDPR.
Philipp Heideker14 min read
People development
Practicing Difficult Employee Conversations: 8 Scenarios Where AI Makes Leaders More Confident
Eight concrete difficult-conversation scenarios, from performance reviews to terminations. How leaders practice with AI safely, at scale, and GDPR-compliant.
Philipp Heideker12 min read
Knowledge & onboarding
Customer Success Onboarding with AI: How New CSMs Become Productive in 14 Days Instead of 60
AI-driven CSM onboarding cuts ramp-up from 60 to 90 days down to 14, with scorecard-based measurability per skill dimension.
Philipp Heideker11 min read
Knowledge & onboarding
Sales Rep Onboarding with AI: How to Cut Ramp-Up Time in Half
AI sales onboarding: how new reps reach productivity faster, the five mistakes that stretch out ramp-up, and what a 90-day program looks like.
Philipp Heideker12 min read
People development
The Coaching Gap: Why Managers Are Accountable for Outcomes They Have No Tools to Produce
The coaching gap is the mismatch between what managers are accountable for and the tools they actually have. Why one-on-one coaching covers only 3-5%.
Philipp Heideker13 min read
GDPR & compliance
What Security Questionnaires Actually Test - And What They Should Tell You About Your AI Vendor
Security questionnaires aren't compliance theater - they're a vendor maturity diagnostic. The most telling question separates mature vendors from pretenders.
Philipp Heideker10 min read
People development
Selling AI in DACH: What We Learned From 40 Enterprise Conversations
Selling AI to DACH enterprises: why the DPA matters more than the demo, the champion is never the buyer, and the Works Council is a gift, not an obstacle.
Philipp Heideker12 min read
People development
Initiatives, Not Courses: A New Organizational Model for People Development
Initiatives, not courses, are the right unit for enterprise people development. Here's what an initiative is, why it works, and why it's only now possible.
Philipp Heideker11 min read
People development
Scaling Sales Training: Why Traditional Approaches Fail and How AI Fixes It
Traditional sales training can't scale past 100 reps. See why, and how AI-powered coaching solves capacity, consistency, and practice density at once.
Philipp Heideker11 min read
AI coaching & training
What Is AI Sales Coaching? Definition, Benefits, and How It Works
AI sales coaching explained: definition, how it works, benefits, selection criteria, and limits. Measurable ramp-up impact for B2B sales teams.
Philipp Heideker10 min read
People development
How to Increase Your Close Rate: 7 Proven Strategies for B2B Sales Teams
How to increase close rate in B2B: 7 proven strategies with diagnostic framework, benchmarks, and concrete actions. From qualification to win/loss.
Philipp Heideker16 min read
People development
Sales Training: The Complete Guide to Methods, Formats, and Providers (2026)
Sales training 2026: 5 methodologies compared (SPIN, Challenger, MEDDIC), training formats with strengths and limits, provider types in the DACH market.
Philipp Heideker16 min read
People development
Sales Objection Handling: The 8 Most Common Objections and How to Master Them
Sales objection handling: the 8 most common B2B objections, 6 proven methods with examples, and why regular practice makes the difference.
Philipp Heideker16 min read
AI coaching & training
AI Role-Plays in Sales Training: 10 Ways They Change How Teams Practice
How simulated buyer conversations build sales skill: the practice loop, which calls reps should drill, how gamification drives adoption, and how to track ROI.
Philipp Heideker16 min read
AI coaching & training
Sales Training with AI: How Modern AI Solutions Are Rethinking Sales Training
Sales training with AI replaces one-off workshops with always-on practice and instant feedback. Covers the learning cycle, remote teams, KPIs, and myths.
Philipp Heideker18 min read