Why would we trade Olave? The 49ers have Deebo and Aiyuk up for grabs, they drafted the WR from Florida last year and still have Kittles and McCaffrey, they are just resetting their cap and Shannahan has a system that works and was not predicated on the production of Deebo or Aiyuk.
Best case scenario is he's healthy and has his best year. In this best case, you are now looking at his next contract at 28-30M a year. We don't need to be the team on the hook for that much money for the player he is and with his injury history.