Spot on. Smalling apart, most have been played all over the pitch and had little if any consistency. Darmian for example has played LB, RB and even CB. Blind has played LB, LCB and DM when required, Schweinsteiger has played DM most of the time, but has also played AM (shocking; see Arsenal) and played alongside players that don't complement him. Herrera has barely played (cue his trying too hard and then getting dropped each time he plays well), Martial has played LW, RW and CF. Young has played RB, LB, LW, RW, #10 and CF (that he's in the squad is shocking enough; top play all these positions is just madness!). The list is endless. I could rant about Mata and even someone as dire as Fellaini (CF, #10, DM... what?) has been shunted around.
Pereira meanwhile has clearly lost favour (did he ever have it?) and he, Januzaj as well as Herrera would be entitled to agitate for a move if LvG stays.
To mutilate one of Metallica's worse songs:
And still the Coach hangs on,
Listen, the Board plays his song,
Ash to ash, dust to dust,
We'll fade to black...
Fortune, fame,
We used to be vain,
Now going insane....
Only memories remain...