Our trainers/coaches

All Gladwell trainers work as a coach with our clients around the world. That is why they know better than anyone how to connect theory with practice.

Gladwell Academy works closely with both AgilityMasters as BlinkLane consulting and specifically hires T-shaped professionals.


These T-shaped professionals all have generic coaching, consulting and training skills and competences. We believe a good trainer should also be an excellent coach and vice versa. These are just extensions of each other, not seperate domains. Therefore all our trainers have experience in these domains and we also ensure that we train our own trainers. All our trainers are:

  • Good communicators
  • Excellent facilitators
  • High energy and engaging people


All our trainers are trained in and have access to our Agile training toolkit. This toolkit is our combined experience of the best training materials, which we have gathered and developed over the years.


Next to that all our trainers also develop themselves in a certain expertise area:

  • Training and coaching teams / individuals or Leadership teams
  • Agile transformation coaching


This allows us to select the appropriate trainer for a specific course and thereby ensuring that we deliver the highest quality training and also engage with the audience in a fun, yet effective, manner.

Sander Dur


Sander Dur is a trainer at Gladwell Academy.

Sander holds a bachelor’s degree in IT Management (Computer Science at the Hogeschool van Amsterdam). He is certified Scrum Master (PSM III) and also PO, SPC and RTE certified. He has gained experience at various companies, ministries and semi-government organizations in facilitating Scrum ceremonies and coaching teams in the Scrum philosophy. He also likes to give trainings.

Sander Dur is a Scrum Master / Agile (team) coach at AgilityMasters.com and is involved in coaching Scrum Teams.

Sander is enthusiastic, open-minded and ambitious. He finds interpersonal relationships and intrinsic motivation very important in the team dynamics.

Abram Janse

He has extensive experience with scaling Agile, interactive group trainings and Agile change management for clients worldwide in both the private and public sector.

Abram mostly aims to reduce redundant complexity in organisations. He reaches this by facilitating group interaction and individual growth supported by visualisations, serious gaming, gamification and online learning platforms. Clients value Abram for his authentic presence and obvious experience, which he both uses to trigger his audience towards new thoughts and behaviors. Abram generates movement and builds tempo.


Abram is a certified Scaled Agile Program Consultant (SPC), qualified to teach and examinate aspirants for SAFe Agilist, SAFe Practitioner, SAFe PM / PO, SAFe Scrum Master and SAFe Advanced Scrum Master.

Abram is also authorized to give the training and exams of Agile Scrum Foundation, Professional Scrum Product Owner (PSPO1), Professional Scrum Master (PSM1 and PSM2), Prince2 Foundation / Practitioner and AgilePM Foundation / Practitioner.

Renate Cremer

Her interest in human behavior, learning and growth is to be found in her background as labor and organization psychologist with a specialization in Training and Development. Earlier in her career, as a HR Business Partner, she was involved in HR processes and innovation. These experiences help her understand complex organizational structures and environments.

Her knowledge in human interaction and behavior helps Renate to create a learning path with groups. She believes in the human potential and is a believer of ‘a life full of learning’. She is actively involved in development and facilitation of the Train the Agile trainer and Train the Agile coach.


Renate is a certified Scaled Agile Program Consultant (SPC) and therefore authorized to teach and examine the following Scaled Agile courses: SAFe Agilist (SA), SAFe Practitioner (SP), SAFe PM / PO (SPMPO), SAFe Scrum Master ( SM). In addition, she is authorized to teach, facilitate and examine for Agile Scrum Foundation (Exin), Professional Product Owner (PSP01), Professional Scrum Master (PSM1) of Scrum.org and is DISC certified.