The duo drew some big penalty flags once again Sunday in a 24-17 loss to Seattle.
"We have to control the penalties," coach Dick Jauron said. "Those are things we can control."
Tillman got flagged for a crucial 15-yard penalty for pass interference on a second-and-20 pass to Koren Robinson that put the Seahawks at the Bears' 25 before their game-winning touchdown run by Shaun Alexander.
"It was a late call," Tillman said. "I took about three full steps and walked away and he threw his damn flag.
"What's up with that? I don't know. So it was just dumb call, a bad call, a horrible call."
In the early second quarter, McQuarters drew a penalty for bumping Darrell Jackson in the end zone on a pass from the Bears' 30. The flag put the ball at the Bears' 1 and one play later Alexander scored the game's first TD on a 1-yard run.
"I think it's a respect factor," McQuarters said of the officials. "You're 1-4, 1-5 now. It's like no respect."
He thinks officials look at the Bears' record and think "something's wrong with them."
"Obviously we've got to start stacking up some wins to get some calls and get some respect," McQuarters added.
McQuarters had a bad day with that penalty aside. Matt Hasselbeck burned him for a 25-yard TD pass to former Bear Bobby Engram. Then muffed a punt when the Bears had Seattle backed up at their own 25 and the resulting scramble for the loose ball cost the Bears 16 yards and left them starting a drive from their own 9. The poor field position helped lead to a 45-yard Josh Brown field goal and 17-6 Seattle lead.
"It sailed over my head and I started to let it go, but I felt like I could grab ahold of it and I didn't," McQuarters said.
McQuarters summed up his day as a poor one.
"I don't think I played that well. Actually I played bad," he said. "I feel like I'm my own worst critic, for the most part. For the most part you correct your mistakes, you go back and look at the film and get ready for next week."
McQuarters doesn't know if opponents are picking on him, although it seems that way.
"I don't care if they are, whether they pick on me or not," he said. "I'm still going to be there. I'm still going to play hard. If they want to pick on me they can pick on me."
Bears defensive coordinator Greg Blache stuck up for his veteran cornerback.
"Today wasn't his best day," Blache said of McQuarters. "But I would not say that he's struggling. It's like more than anything, I think it snowballed on him. Today's the only day he had some plays that weren't up to Dub's standards
"To say struggling, no I wouldn't go that far."