I used to be friends with crespi a really long time ago (when I aliased as "comanche") in pubs.
He would literally try to micro his team in pubs, and constantly got mad over the mic, telling specific players to switch classes and do certain things. When things weren't going well, instead of switching away from medic, he'd just continue to get mad and complain over the mic.
I told him to take it easy, and he removed me.
It doesn't surprise me that he's committed to improving now, but anyone who is looking to pick him up should probably have the same idea of what they want out of a team that crespi does.