Because they had to do SOMETHING. Orr has been in over his head and he played under Pees who he still had a great relationship with...when there are no other viable options, you have to do the best you can. For me..."bend don't break" is still better than a complete breakdown. The "breaking" we've seen with Orr calling the plays is worse than anything Pees did, imo. I'm still in favor of just having Pees take over--I mean at least he did do well enough to win a SB, lol And really...this offense is great enough to carry "bend don't break" (although the communication of defense HAS to improve).
And besides...what other moves are available for the Ravens to make at the point?