Mike Potel recalls:
"Tesler had me attend JLG's staff meetings as ATG’s rep. He was grounded in user experience and held the virtues of usability, elegance, and simplicity. Anything that wasn’t ready for prime time got the evil eye. But he also encouraged plenty of thinking out of the box and backed many fledgling ideas. I got to see all this firsthand. Engineers saw Jean-Louis as a protector, save for those times when he was shooting down your latest great idea."