The Miami Dolphins' shoddy execution on offense in their first mini-camp practice has left quarterback Ryan Tannehill annoyed.
Tannehill called the repeated mistakes Tuesday frustrating and unacceptable.
The season opener is still nearly three months away, but the fits and starts underscored the challenge faced by Tannehill as he and his teammates learn new offensive coordinator Bill Lazor's playbook.
It's the first time since high school that Tannehill has run an offense designed by someone other than Mike Sherman. Sherman was the Dolphins' offensive coordinator in Tannehill's first two NFL seasons, and was the head coach at Texas A&M when Tannehill played there.
Lazor's offense spreads the field and moves players around a lot.