The answer is yes and no
Bayless is great at attacking the basket, and he is a pretty good defender. The problem with that is he makes rookie mistakes so Nate won't play him.
Travis is one of the worst perimeter defenders in the league, while Batum plays pretty good defense, but again, Nate has troubles playing Batum because he is too inconsistent
What probably should happen is Portland should trade for a couple of older vets at PG and SF who are solid Perimeter defender and can get to the rim on offense. That way in a few years when both Bayless and Batum are ready to play more minutes they will have learned from the right people.