I hold an unsubsantiated opinion that some iffy clubs will draft a spiffy RB or WR, because it enthuses the fans and sells tickets and trinkets.
CIN and Corey Dillon comes to mind. They certainly took pains to give him a good run blocking, if not pass blocking, OL.
They also used to crow about how in one season, they were tough as nails against the run (the opposition didn't bother running because they could pass them silly), the next season they were leaders in pass defense (Stevie Wonder or Grandma Moses could have dinged their run defense for 150 rush yards and 3 tds).