Steve Young -- the classic run-and-throw NFL quarterback -- has an idea for Colin Kaepernick this summer.Tie up your legs. You read that right.Tuesday, on ESPN's "NFL Live" the former San Francisco 49ers star quarterback had that advice for the current fast-legged, big-armed 49ers passer. Young simply thinks Kaepernick needs to stop relying on his legs and try to become a better pocket quarterback as he enters his second full season as an NFL starter.