Chin Soo Choo is old and won't be able to play defense much longer plus he has a .249 average in ballparks that start with the letter R so that doesn't bode well for us.
Ellsbury has only hit .135 with runners in scoring position on sundays that follow a statutory holiday so I would definitely be careful there.
The Jays don't need to tinker with the outfield that much unless it means finding an upgrade for Rasmus (just kidding, he's a 5 tool player). The only area where upgrades are required are catcher and second base.
Catcher can be addressed by signing McCann this offseason and Kolton Wong, Profar or Kinsler should be traded for without trading outfielders. However even if this doesn't happen, we will be fine because JP hits lots of homeruns and has a .512 average on days when he allows 2 or more pass balls