ALLEN PARK — While general manager Martin Mayhew has been clear that he wants to see improvement from Nick Fairley, Jim Caldwell checked in for the first time on the defensive tackle this morning.

The coach was asked about Fairley’s attitude and hustle quotient.

“We haven’t been on the field so I don’t know anything about hustle ...’’ Caldwell said smiling. During the first two weeks of this offseason program, the players focus on strength and conditioning and can’t be on the field with the coaches.

“I tell you he’s been hustling in the meeting room,’’ Caldwell said. “He’s been great so far. He’s doing what he’s supposed to do, he’s here, he’s working, he’s learning the system, he’s been active in the meeting rooms — I’ve been in there with him. It’s been good, but it’s early yet.’’

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