I have played my Gasperini replika now about 3 or 4 years. My basic setup has been basically same all these years. It's easily my favorite FM tactic nowadays and almost every save i try first something new and then i change to this. I usually make a little tweaks here and there, depending on what kind of players I have. Special thing in my replica are the roles that have wider player instruction, which improves those wide overloads, just like Gasperini has IRL. I try to find taller strikers, like Zapata who can score from crosses.
My setup: 3-4-1-2
SK-S
WCB-D (locked wider)
CD-C / LIB-S / BPD-C (depends on what kind of defenders i have)
WCB-D (locked wider)
WB-A (cross more, close down more)
CAR-S (locked wider)
CAR-S (locked wider)
WB-A (cross more, close down more)
EG-S (also could be AM-S with roaming)
DLF-A (wider)
DLF-A (wider)
also every player except GK and SCs have "mark tighter".
Positive
Play out of defence
Fairly Wide
Focus left/right
Work ball into box (could be also off)
passing&tempo: Shorter/slighty slower or Slightly shorter/slightly higher
Underlap left/right: sometimes off, sometimes on. I can't decide which works better.
Dstr CBs & FBs
Counter-press
Higher dline
Mid block
Trigger press more often
Prevent gk dstr
Get Stuck in
Drop off more
Trap outside