As much as it may sound like it, City didn't just pass United into submission.
"I think it's hard when you have got players that aren't in form", he told Sky Sports.
"So the only way this is going to change, and we've had this discussion for weeks and weeks and weeks now, the only way it's going to change is when Man United get the stomach to make the change at managerial level".
Palace winger Wilfried Zaha suggested he would have to get his leg broken by an opponent for a red card to be brandished following a 1-0 win over Huddersfield Town on September 15, at which Marriner was the fourth official.
As European football slips into the second global break, Manchester United fans can look at the six games between the two breaks and think it could have been much worse.
This dominance was most clear was in the game's final 20 minutes, after United manager Jose Mourinho, down 2-1, put on his last two subs in an attempt to infuse his team with some much needed attacking vigor to earn a draw.
Manchester United fans should strap themselves in for a torrid twelve months, according to Ladbrokes.
"He is going to try to do the best job, like we try as managers and football players", said Guardiola when asked about the referee at his pre-match press conference.More news: Major oil producers foresee oversupply, edge closer to production cuts
"One thing is a bad performance another thing is a performance with mistakes".
The 55-year-old took over at Man United in 2016 after being sacked by Chelsea and has since won the Europa League, the Community Shield and the EFL Cup with the Manchester side.
Former Manchester United defender Nemanja Vidic has said he would like to become the club's manager one day.
The absence of the injured Paul Pogba disrupted United too, Mourinho pointed out.
"If he doesn't bring results, that's the worry because this is Mourinho football".
Jose Mourinho has revealed why Manchester United's game plan fell apart against fierce rivals Manchester City.
"We deserved the win because the guys up-front made an unbelievable job, created chances, got into the box and scored goals".
That was evident on Sunday as they dominated the game, United managing only one shot on target, their penalty. "He's a big-game player and the team sorely missed his dynamism across the park".