OK bud. Be mad about my opinion.
You're right. Starting a 21 year old behind a garbage defense can only go well!
You're creating a strawman. I didn't say that it was a guarantee to be successful. I said let him show that he is ready and capable, and if he doesn't, then give him more seasoning in the AHL.
You have given any insight as to
when the right time to call him up would be. Because on one hand 21 or 22 years old is too young and he might be bad. But then you shift your argument to "well the good ones had good defenses". So how could you ever promote Cossa? You need guarantees that he is both old enough AND that the defense is going to be good? So if the Wings had an elite defense, would he be ready now? Or what happens if the team stalls out and Seider ends up regressing? Now Cossa is 25 or 26 and has been a good goalie in the AHL for years but there isn't good defense in Detroit, so do you leave him down there until you figure it out?
You have to let him show you that his talent level and his training has paid off and plays at the NHL level. The team should know whether or not he can handle the rigors or if he's the panicky mental midget that you make him out to be. Protecting him from the challenge just because you/we/they don't trust the environment he is coming into is 100% a you/we/they problem and not a Cossa problem. We can't just hold him in the AHL until Steve finally builds the perfectly insulated team.
Edit: and again, if he isn't going to be in a true time share in Detroit, put him in Grand Rapids so he can consistently play. I feel I have to keep writing this so eventually you will realize it's the main point.