"We have been very pleasantly and very happy with how he came back from the offseason ready to go," Mayfield said, via the team's official website. "Just how quick he is and you can tell he has been working on his craft. That is very exciting to see that. You bring in a guy like Odell and you re-sign some guys, and he is going to try and compete with them. That is the most important part. Competition brings out the best in them and Callaway is doing that."