We don't need to be in a rush to sign him since we don't know how the draft is gonna play out.
I expect him to be signed shortly after the draft IF we sign him.
I think round 2 of FA will be interesting, but I don't think we'll be big players there, especially if this OBJ thing happens.
As for people wondering how we could do this, Donald could get his money and some extra with guarantees that if he's on the roster as of the third day of the current league year, (he is) then his 2019 bonuses are guaranteed. They could also make his 2020 bonuses guaranteed. That way they would have flex in how it's structured so that AD is guaranteed his money and we have the cap space. He doesn't seem to want all his money now and I think the Rams would be willing to guarantee a significant percentage of the contract with that flex.
If we got OBJ, for example, AD wouldn't necessarily make any more money than he's scheduled to make, but he'd be guaranteed probably $80M over the next few years even, Heaven Forbid, something happened. He'd just get it in things like guaranteed Roster bonuses and/or other things that allow for contract flex while guaranteeing AD the money.
Trust me, if AD wanted that massive signing bonus and wanted his money now, Suh wouldn't be a Ram.
And I think AD would be okay with an offense that allowed him to play one dimensional for half the game and simply pin his ears back with Suh and Brockers and FEAST.