It’s probably a little too late, but the Dolphins owed this to Brady Quinn.
Scam Cameron certainly owed him.
It’s not a terrible move. Pat Devlin just was not an NFL-caliber quarterback. Quinn is. Or was. Or at least might be. A maybe is better than a not.
Quinn does have experience. He’s never played for a decent team, and especially not for a decent offense.
In any case, I can’t see anyone replacing Matt Moore as the #2 QB. Quinn can step in and be #3 emergency QB. Seth Whatever-his-name-was can continue to get shelled in pre-season games and remain on the taxi squad.