No.
Pocket awareness is something that takes a long time to develop. Cassel is obviously more mobile than Bledsoe, but he hasn't developed the ability to create time in the pocket.
This is something that Bledsoe even learned to do (he had really bad lines if you don't remember).
Overall, I think Cassel will continue to get better at avoiding rushers. He obviously won't ever have the pocket awareness of Brady, but because of his running ability, you have to think he will improve.
I don't think a Cassel comparison to Bledsoe is fair- you're comparing a 26 year old in his third start to a potential Hall of Famer (who is obviously underappreciated).
I really like Cassel - but I don't think the comparison is accurate, unless you're just counting sacks.