"But they play so much zone that you can't isolate on the position and take advantage of it," he said.
They bring five guys, sometimes six, but they're playing zone behind it.
Sometimes we were playing man and zone on the same play.
If you can't extend your defense and keep people in front, maybe we've got to play zone.
"We tried to play zone and guys were going the wrong way - it was ridiculous," he said.
"A lot of teams this year have played us zone, and they've had success with it," Harris said.
"Until a team wants to sit back and play zone, we are going to have some big days."
With him out, in the last couple of games they've been playing more zone than man coverage.
"They've got a good front four, and they play zone behind it," he said.
"We've got to become more aggressive, and I probably take blame for the fact that we played too much zone," he said.