Most definitely. My least favorite part about Weber's last season was when he started throwing these young men who were obviously crushed under the bus to crush them further. It was gruesome, and created a negative feedback loop that accelerated the collapse. I'll take an idiotic ladder gimmick over that any day.
+1
The coach needs to be a counter-balance --don't let the team get down when it's going bad, and don't let them start patting themselves on the back when they're winning.
I also think that in the current era of bball, you have to be very careful calling anyone out. With the right relationship, some guys will respond to that, but there's so much media coverage, it's much safer and easier to keep player feedback limited to practice where it won't spiral out of control or morph into something unintended.