Quick wasn't an early 1st round pick though. He was an early 2nd rounder. He was never expected to be an instant #1. He was a promising project that COULD turn into #1.
Even if we draft Watkins, Quick or someone else COULD still step up. Then that makes what's been a weakness on our team into a very scary strength.
But you could honestly go the "What if he doesn't pan out?" route with ANY pick. What if Matthews/Robinson don't pan out? Then not only did we pick a bust, we picked a bust at a position that was not a need. (I know you'll argue that, but again, early 1st round, you're drafting for LEFT TACKLE. Any other position, you get later. And we have a left tackle that we paid big money for already.)