Poole and Daniels will be solid contributors for years to come and we should be happy about that, coming from a pair of 4th rounders.
But we should refrain from comparing our situation to Philly's or from naming them the next Surtain/Madison until they prove it. For now, the percentages are really against that happening. First off, neither is very fast. They can't cover ideally in the deep quarters of the field. You can get away with one corner that isn't too fast (Madison), but not two. And yes, I think Saban may indeed have had Daniels in mind as a free safety, and I truly believe he will eventually move there.
Saban's desire to get his hands on Corey Webster should be taken as a sign that he doesn't think Travis Daniels is a "next big thing" at corner. He's a solid contributor, and will remain a solid contributor. I beleive Poole is like that too, though he's got better ball skills. We should continue to keep an eye out for better corners.