It can still be done, but like Roland ssid, those components have to be part of it.
The Hawks have positioned themselves to not be a dynasty so much, but be in the hunt and have a solid chance every year. They hit on a bunch of picks, more than we could ever expect. What that does, is allow them to draft without the pressure of hitting on 5 guys every season. Now they can hit on 1 or 2 to maintain the level of talent, backfilling those players that leave in FA.
We can't expect more than that. Having guys like PC/JS and our fantastic QB is going to be so huge for sustained success. PC is a big competition guy and what we have seen so far that is if a young guy can play, he is going to get the chance. These kids are going to step it up immediately, not settling for being a backup. Look at Douchebaugh, he let their first rounder sit as a rookie. That would never happen in PCs world. So many of his players from the draft are on the field.
The only team I consider to be dynasty level today is the Pats. They have managed to stay extremely successful while rotating players like crazy. The one constant is coach and QB.