I think we're getting into slippery slopes after this year. The last two years it was needed (even though we didn't last year).
With Carr coming in and Knight after, I get worried about the message of bringing one in next year. Unfortunately, after we see Carr in the spring, it probably would be too late to get any top notch transfer.
The flip side, is you shoot for the moon and then just don't care about the impact it has on your roster or future recruits as long as you win now.