"I really believe Odell is a professional. He wants to be great. He understands the importance of the offseason. He's a competitive guy...I'm glad he's here today," Shumur said Monday.
Beckham, 25, has been featured in trade rumors in recent weeks, due in part to his contract status. The three-time Pro Bowler, who is coming off a season-ending ankle injury, can be an unrestricted free agent next year.
ESPN's Adam Schefter reported March 29 the Giants would be open to trading Beckham for two first-round picks. Two days prior, Giants general manager Dave Gettleman commented on Beckham's status to NFL Network's Kimberly Jones.
"Bottom line is, as Ernie [Accorsi] taught us, you don't quit on talent," Gettleman said. "... He's on our team."
Beckham is undoubtedly one of the best receivers in football. He had at least 90 receptions, 1,300 receiving yards and 10 touchdowns in each of his first three NFL seasons. Only Antonio Brown and Julio Jones have averaged more receiving yards per game than Beckham since he entered the league.
However, there have been near-constant questions about his attitude. Beckham has been criticized for multiple sideline outbursts, though he made the point in December that his competitiveness is viewed differently than Tom Brady's.
There have also been other questions about his maturity following his fights with opponents and off-field endeavors. Though he has never been in trouble off the field, his celebrity lifestyle has drawn some ire as the Giants have slipped in the standings.