According to Steamer, the Jays currently project for ~75 wins with the Roark addition. Signing Ryu (2.9 WAR) would get them to ~78 and there are so many areas they could feasibly nickle and dime their way to improving significantly.
Allow me to demonstrate.
Bullpen:
Collin McHugh - 2/12 - 6 AAV - 0.6 WAR
Craig Stammen - 2/10 - 5 AAV - 0.4 WAR
Infield:
Cesar Hernandez - 1/6 - 6 AAV - 2.1 WAR
Yoshitomo Tsutsugo - 4/36 - 9 AAV - 2 WAR?
Other Ideas:
Sign one or two of the Alex Wood (1.1), Taijuan Walker (0.9), Jimmer Nelson (0.9), and Drew Smyly (0.9) types as inexpensive depth with plausible upside that could be used in various roles. It's likely that none of these guys project as pure starters going forward, but you limit their innings and utilize them in various roles out of the bullpen (long-men, post-openers, or possibly as mid-to-late inning relief arms). Just sign the two cheapest ones and hope that one of them performs well.
f*** off:
Richard Urena (0)
Breyvic Valera (0.1)
Brandon Drury (0.6)
Billy McKinney (0.2)
Jonathan Davis (0.2)
Anthony Alford (-0.1)
When you combine everything outlined above, my feelings are that everything here is reasonable and attainable. It's not at all out of reach to move the projected win total closer to 85 by the beginning of the season with Ryu + Tsutsugo + cheap, simple upgrades. And while it's not the expected goal for next season, an 85 projected-win total would give the Jays an outside shot at contending for a wildcard spot if some things break in their favour and they look to add during the season if they find themselves in a favourable position.
You have to assume it's going to take ~95 wins to get in. They're honestly not that far off from that mark and, even after a potential series of moves like the ones above, they still maintain their flexibility going forward. And I didn't even mention the prospects that haven't debuted yet, like Nate Pearson. It's also not difficult to envision a few of Bichette (3.2), Biggio (2.2), Hernandez (0.2), Jansen/McGuire (3.8), Giles (1), Roark (1.4), Thornton (1.3), and Anderson (0.8) surpassing their WAR projections to varying degrees. Ryu (4/80), too, if he signs.
The team then looks more like this:
1. Bichette, SS (3.2)
2. Biggio, 2B (2.2)
3. Guerrero Jr., 3B (3.5)
4. Gurriel Jr., LF (1.5)
5. Tsutsugo, 1B (2?)
6. Grichuk, CF (1.7)
7. T. Hernandez, RF/DH (0.2)
8. Jansen, C (2.2)
9. Fisher, RF/DH (0.6)
BN: C. Hernandez (super-utility type that starts most games, 2.1), McGuire (1.6), Tellez (1.2 lol)
SP - Ryu (2.9)
SP - Roark (1.4)
SP - Anderson (0.8)
SP - Thornton (1.3)
SP - Shoemaker (1.4)
OP - Font (0.4)
RP - Giles (1)
RP - McHugh (0.6)
RP - Stammen (0.4)
RP - Bass (0.4)
RP - Gaviglio (0.3)
RP - Reid-Foley (0.1)
RP - Cole (0)
RP - Wood (1.1)
Plus all the extra noise and contributions from the shuttle and that's roughly an 85-win team that:
a. Isn't bogged down by any albatross or super lengthy contracts
b. Maintains some payroll flexibility (~$130M payroll by my rough calculations)
c. Has Tulo's contract coming off the books soon ($14M this year, 4M next)
d. Will get significantly better, organically
e. Is deep on the farm and will have waves of talent breaking through every season
Honestly, they might even be better off saving a few million and signing a few semi-intriguing relievers to minor league deals and hoping for a couple of surprise seasons instead of signing the McHughs and Stammens of the world, but I digress.
This roster allows the team to be competitive on a reasonable payroll while the young core continues to develop and improve to the point that it's a perennial contender.
While in some ways it would be a shame to forego the tremendous payroll flexibility they have right now, it sort of renders it pointless to have and brag about if it's not utilized. By the time the young core hits arb, some of these contracts will be off the books and a few of the prospects within the org will have forced their way into the picture. Rinse and repeat.
Sustained winning = good times had by all.