The Cubs had a pitcher named Mike Montgomery for several years that was effective in a jack-of-all trades role. He'd pitch as a swing-man when their starting staff was fully healthy but he'd slide in as a spot starter as needed throughout the year. I'd like to see Vlad & Tony become similar type pitchers. Primarily multi-inning relievers that can plug into the rotation if/when they are needed.
Hoffman isn't great but he's the best 5th option at the moment. Tony's already going to the pen. Vlad should do the same for the remainder of this year. Adding those 2 plus a returning Lorenzen greatly improves the adequacy of the bullpen options.