Payroll flexibility heading into next offseason would be my main focus so I would definitely target players to one-year deals which likely could be done. Blue Jays could still roll out a really solid team if they went that route, especially since we have to expect some of their main bats like Vladdy, Springer, Varsho, and Kirk to bounce back somewhat.
I would sign one of Hoskins or JDM to DH to a one-year contract. Give them between $18-22M.
I would sign two outfielders with one of them being a defensive specialist who could play CF whether it's KK, Bader or Taylor. Like Term said, can't just forget about defense and I agree. Sign someone to pair with one of them like Duvall, Pederson, Pham or Hicks.
Would take a look at a reclamation project like Meadows or Gallo if the Jays have the roster space.
As for 3B, I think the trade market is probably the best bet. Would either target someone like Polanco or Adames or Moncada. If the Jays decided to go with someone risky like Moncada or one of the other weaker FA's or someone in-house, wouldn't mind signing a vet bat at 3B like Evan Longoria who you could give 200-300 PA's as some depth.
If the Jays had to trade Kikuchi or Manoah for a 3B or for something else, would sign someone like Montas, Paxton, Alex Wood or Lauer to a one-year deal.
Would sign an arm like Jake Junis for rotation depth and as a BP arm if there is roster space. Would have to trade an arm like Richards most likely or just wouldn't bring in another bench bat like Longoria or someone so would carry 13 bats and 13 pitchers if Richards is kept.
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Lineup:
RF Springer
SS Bichette
1B Guerrero Jr.
DH Hoskins or Martinez
LF (Pederson or Hicks or Kiermaier or Meadows or Gallo with Duvall or Pham or Taylor or Bader)
C Jansen / Kirk
CF Varsho
3B Polanco or Moncada
2B Biggio / Schneider
*Lineup changes/flexibility depending on which bats are playing*
Bench:
C Kirk/Jansen
2B Biggio/Schneider
OF second half of the platoon who isn't starting
2B/SS Espinal
3B Longoria
=14 bats
Rotation:
Guasman
Berrios
Bassitt
Kikuchi or one FA SP
Manoah or one FA SP
Romano
Swanson
Mayza
Green
Garcia
Cabrera
Junis
=12 pitchers