Sleak

Insights on skills, knowledge & development.

Our AI runs realistic sales conversations with your reps and gives each one personalised feedback.

Explore Blogs
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
Read article
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
Read article

Explore All

Practical writing on sales training, coaching and onboarding – from the team that works with sales organisations every day.

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
Read article
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
Read article
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
Read article
AI Coaching & Training

AI Role-Play in Sales: How Realistic Practice Improves Sales Conversations

AI role-play lets sales reps practice real conversations with an AI persona and get scored feedback that turns repetition into skill.

Philipp Heideker11 min read
Read article
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
Read article
AI Coaching & Training

Training Difficult Patient Conversations: How Clinical Staff Practice Communication Safely and in Full GDPR Compliance

Doctors and nurses can practice difficult patient conversations in realistic AI simulations that are safe, measurable, and fully GDPR-compliant.

Philipp Heideker10 min read
Read article

Sign up for our newsletter

New posts on skill-building, training and AI at work – straight to your inbox.

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
Read article
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
Read article
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
Read article