Pretty much nothing, he lost his starting ILB job for the passed 2 seasons. Leon Williams and Dqwell Jackson have been starting. The only problem with Leon Williams is he gets nothing but tackles IDP wise, same with Dqwell. Dqwell also performed very well last year for me but I heard talks that their not really happy with him in run support because the fact that he is undersized.
Davis, when healthy, "started" and played in the base defense over Williams in each of the last two seasons. Essentially, it was a platoon situation. There's potentially an every-down job for the taking here, especially since the Browns aren't flush with secondary talent right now. Williams was falling out of favor with the previous coaching staff and front office, and it's possible that opinion hasn't/won't carry over to the new talent evaluators. Beau Bell, if he can stay healthy and looks good in OTAs, may be able to seize at least the base defensive SILB snaps. And it's pretty likely the Browns will find a cheap vet in free agency or target linebackers (inside and outside) early in the draft. Should be a wide open competition next to Jackson this summer.