After Paul Pogba picked up a hamstring injury last month in the 3-0 Champions League win over Basel, Fellaini has filled in superbly in his absence.
Two goals in the 4-0 thrashing of Crystal Palace at Old Trafford before the international break illustrated this and he has been a calming presence in the heart of midfield, however he is unavailable for the game against Liverpool tomorrow (12.30pm) due to injury.
Herrera, meanwhile, has struggled to get a look-in under Jose Mourinho this season despite his fabulous form last term.
And Cole thinks Fellaini has been playing well, because he has the trust of Jose Mourinho.
“He’s had a great start this season,” Cole told The Sun.

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“You need someone who believes in you and the manager does.
“On the flip side, look at Herrera who was United’s best player last season — he can’t get a game. That’s football.”
United can go top of the table for a few hours at least if they beat Liverpool.
Klopp’s men meanwhile will be looking to jump into the top four with a victory.