Using Steve Young and Tampa Bay is valid to a degree, but, Alex has had Martz, yet he was not selected by Martz, to start. He also had turner. Even though he did not have any of them for more than a year, you would think he would retain something of what they taught him mentally. Everybody likes to say he is super smart, well there is intelligent smart and there is football smart. Just like they say street smart. There is a difference. As it was said during one of the playoff games yesterday, some people think too much. When any athlete thinks too much it changes their mechanics in any sport. This applies especially to Alex, you can't undo this some people are are always like this.
In college Alex didn't play in a sophisticated offense, he wasn't required to read and check off and look off his 1st 2nd 3rd etc. In college it was simple. That is why Urban said he needs time to learn the system, but in the pros it is much more complicated.
When Alex has pressure and has to think he gets in trouble. He will be better coming of the bench when he doesn't have to think or worry. When the new season starts he will always be thinking and worrying of not screwing up, thus he will never make it as a starter.