My feeling is more along the lines of Oher falling to them at 23, contrasted to lucking out with Gaither as a supplemental and/or locker room issues.
Oher looks like a top-flight left tackle, as does Gaither. Ravens are close...real close...to contending for that SB, and they DO have payroll concerns.
I think they think they are OK at right tackle without either Oher or Gaither there, and don't want to pay top left tackle dollar to Gaither, along with wanting a 2nd.
I get the local Baltimore media here in central PA, including a daily half-hour show on the Ravens.
The debate right now is if they would actually take a THIRD rounder for him (no)...
They want that pick while they still have something to trade. (coupled with the $$$ involved)
That seem to be the biggest "driver" of the debate.
NO ONE seems to dislike Gaither (fan-wise). They also seem to think he is slightly better than Oher, right now, as a left tackle.
Rosenhaus is going to get this guy big bucks. "Market" price for a top-tier left tackle is brutal. Look what we just paid for our below average geezer stop-gap one...which, by the way, further drove up the price for Gaither...
$$$$$ is THE driving force in his potentially leaving Baltimore, not the other "issues". That is my uneducated guess/sediment, anyway.