In 2023, the Blue Jays bullpen was essentially a four win team; last year it was -3.5. That's aa 7.5 difference in win differential. The Blue Jays have taken steps to address their biggest roster hole, including signing All-Star closer
Jeff Hoffman to a three year deal.
OOPSY by FanGraphs now has the Jays ranked as a top 10 bullpen. If the Jays can get back to their 2023 effectiveness, that's 7 extra wins right there.