I don't know that there's much to do in your situation.
Juan Gutierrez has value, but still not as much as Qualls.
Hoffman is horrible right now and it may not get better, but there is no clear handcuff. In a league with no bench, you can't really go dropping closers for guys with unclear roles. You can't drop closers for set-up men.
Whatever you do, don't trade for a closer.
No bench should mean there's plenty of waiver options. Just be sure to be the first to pounce should Hoffman or Qualls lose their closing gig. (Just a hunch, but I'd guess they'll have to make up a injury for Hoffman before they straight-up bench him. That'll make it easier to decipher, I think.)
10 team 5x5 ROTO (OBP), 11-player keeper, C/1B/2B/3B/SS/MI/CI/IF/5OF/UTIL/8SP/3RP
C: Sal. Perez
1B: Rizzo, Adams, Lind, Carter
2B: Kinsler, Kipnis
3B: M.Cabrera, M. Reynolds, Semien
OF: Stanton, Trumbo, Choo, Marte, Rasmus, Blackmon, Bradley Jr.
SP: Gio, Scherzer, Ryu, Cashner, Kuroda, Lackey, Minor, Wood, Smyly
RP: Balfour, Perkins, Axford, Nathan, Frieri