Let's be real here...Beal isn't taking guys off the dribble with anywhere near the effectiveness of Waiters. That's the main reason I liked Waiters better than Beal as a prospect in the 2012 draft. He has that dynamic first step and the ability to get to the hoop at will that most guys don't.
It's obvious that Beal was better off the ball and still is, and it makes perfect sense. When you struggle to get around guys off the dribble, you need to be able to move without the ball to effectively put yourself in position to score. Beal has a game based around catching and shooting, cutting, and shooting off of screens. Waiters has a game based on creating separation, attacking the hoop, and setting up his teammates, although is spot up game has become pretty impressive too. I think both are pretty comparable from a "how good are they now" standpoint, but I prefer the game Waiters has because I think it's been proven that, in the playoffs, you need multiple guys who can create.
Waiters absolutely does need to get better off the ball, and I think having Blatt as a coach will really help in that regard, as Blatt might actually try to teach him rather than just moving him to the bench and letting him keep playing the same way.