By Andrew Holleran Amari Cooper might be leaving the Dallas Cowboys, but he could be staying in the NFC East. According to multiple reports, the Cowboys are likely to trade or release the Pro Bowl wide receiver at some point this offseason. Cooper remains one of the top wide receivers in the league, but the Cowboys apparently feel they can use his money better elsewhere. From ESPN.com: Cooper is due $20 million in fully guaranteed money on the fifth day of the new league year, March 20. The Cowboys designed Cooper’s $100 million contract in a way in which they could get out of the deal for a r…