Well, he hasn't stuck with the leafs and he passed through waivers so clearly there is something that doesn't line up.
IMO, his footspeed and work ethic are the things that stick out to me.
But seriously, the horse is dead, beaten and burried when it comes to Petan.
.
Yes,
But if the Jets messed him up, he is messed up. It is a chicken or egg argument and can't ever be known. I suspect the problem lies on both sides. He failed to adapt to give coaches what they wanted. That's on him. They failed to set him up to succeed, wanting him to first prove he could be something he was not. That's on them.
It may be that a stronger work ethic would have led him to improve his foot speed in off-season training. Or he may have done that but still never been set up to succeed. In his limited time with skilled linemates, he performed well. With plugs, slugs and grinders, he did not.
He may still do very well in Europe somewhere.