Tbh if Besic was fit, then I would try playing without Barry, as something is going badly wrong with tracking runners.
Robles, Coleman, Jags, Mori and Baines also need a run of games together IMO, we need some consistency in defence.
If Mirallas gets fit we need him playing wide with Del (or Lennon) on the other side.
Mirallas and Del doesn't work from the start. No balance to the side unfortunately. Mirallas and Lennon does look a good pairing though.