The scuttlebutt here in Michigan is that the Tigers are trying to play the game the way the Twins and Astros have the past few years: essentially shorten it to six innings for its starters (a rag-tag crew) then follow with a strong 7-8-9 relief (Farnsworth-Urbina-Percy).
Their second tier MRs also have some potential, espc. German, so they may have the depth to make it work.
Urbina is key to this. If the Tigers falter, you'll likely see him moved by the trade deadline.
As far as closing goes, Percy is clearly the man in Detroit now. But Trammell knows he has an outstanding option in Uggy if it doesn't work out. We'll see.