It is not impossible to sign either Tucker or Bo, or even both when it comes to the roster.
Just that it is financially unlikely.
C - Kirk/Heineman
1B - Vladdy/Okamoto
2B - Bo/Giminez/Clement
SS - Giminez/Clement/Bo
3B - Okamoto/Barger/Clement
RF - Tucker/Barger
CF - Varsho/Straw
LF - Santander/Tucker
DH - Springer/Santander
That is 13 players with Clement and Barger as your primary sub or rotation players. Straw and Heineman are your backup CF and C, as well as RH and LH bench bats.
Signing both makes Lukes and Schneider both trade fodder. Signing one, makes one of them a trade piece.
I am not saying the Jays will sign both or either, just that its not like they won't help the roster.