here is a horror story:
last season I was loaded at WR, we start three, and I had Randy Moss, Joe Horn, Marty Booker, Troy Brown, Amani Toomer. However, my tight ends sucked (Wesley Walls, Roland Williams)
so I traded Amani Toomer for Bubba Franks, win win for both sides right?
WRONG, I ended up playing that guy in the Super Bowl, he won with Toomer's monster performance while Franks put up a big fat ZERO that week.