I'm in a 12 team keeper league. It is a H2H, ESPN standard auction. I've been offered Shaun Marcum and Asdrubal Cabrera for Madison Bumgarner and Mark Trumbo. I'd normally accept, but Bumgarner is only $8 and it has me hesitating to give him up. I'm obviously competing for this year but I don't want to blow my chances in upcoming years by giving up a possible elite pitcher. Thoughts?