10 team standard league, we play 2 rbs, 3 wrs and a flex, which can be either. I'm loaded at WR, got Dez Bryant, AJ Green, Keenan Allen, Crabtree, Riley Cooper, kelvin Benjamin and Reggie Wayne. My RBs are Doug Martin, frank gore and Steven Jackson. I have been offered Jamal Charles for Dez and Martin. Am I strong enough at wide receiver to do this? Would appreciate some opinions, thanks.