IRVING, Texas -- One of the Dallas Cowboys’ homework assignments in the offseason has been to figure out a way to avoid hamstring injuries.

Twelve players suffered strains of varying levels and missed either game or practice time in 2013: Miles Austin, Morris Claiborne, Sean Lee, Justin Durant, Dwayne Harris, Bruce Carter, Danny McCray, Barry Church, Dez Bryant, Lance Dunbar, Gavin Escobar and Terrance Williams.

The shortened offseason conditioning program could play a factor in the increase in injuries, but it has not affected every team. The Cowboys have studied other teams’ approaches and injury numbers to come up with a solution.

Coach Jason Garrett said one possibility is cutting back on the time spent on the field, especially early in the offseason.

“It is valuable to do the football stuff. We don’t feel like there’s a lot of football stuff right now,” Garrett said. “We want to be careful about how much we take away from that. But there’s a couple weeks prior to all that stuff starting. We’ve talked about tweaking the daily schedule and what we’re doing those first couple weeks as we start to lay the foundation for the offseason.”

While many players train on their own before the official offseason program starts in April, there is only a two-week period of training before players get on the field for teaching sessions.

“[Strength and conditioning coach Mike Woicik] I know is certainly not happy with it,” executive vice president Stephen Jones said. “[Athletic trainers] Jim Maurer and Britt Brown0 are not happy. I know Jason’s not happy with it and I damn sure know Jerry [Jones] and I are not happy with it. So we’re looking at ways to try to work on that.”

One way might be doing less instead of more.