Depending on Groshans/Martin development this year, Semien might not be a priority to re-sign.
Don't get me wrong, he's been great, and I'd love to have him on the team, but I don't know if the Jays should spend $100M over 4 years or whatever on him w/ the other pieces that are on the team. Of course, if Groshans/Martin aren't remotely ready, or Biggio can't get it back together, or they can get Vladdy and Bo signed to stupid cheap extensions, or any number of other things happen, it might make sense. There are only 3 positions where he works, and Bo/Groshans/Martin/Biggio also work at those positions, in whatever combination.
I mean, amazing problem to have regardless...