I would say it slightly differently:
Leafs don’t “have to” upgrade their defence, but it would be very desirable to do so. If anything happened to Andersen (hurt or his play falls) who has been the Leafs MVP for the last 2.5 years and they needed to depend on just an average goalie they would be in trouble. Leafs depend heavily on Andersen for their success which is fine, as long as he can stay healthy, maintain his play and doesn’t get wore down during the playoffs.
As the Leafs are currently constructed their a very good team and without doubt a top 5 cup favourite. With a defence upgrade they instantly become the top cup contender IMO. Being the top cup contender doesn’t guarantee anyone anything, but it does incrementally improve your odds of winning.
Good post, but I still think Tampa is the clear favorite right now and would likely remain so, it would swing a bit depending on who we add.
As for Andersen, I think he's awesome but there's no doubt he wasn't good in the Bruins series. IMO, Rask did indeed outplay him (Rask was underwhelming himself) but not enough to swing the series, Andersen could have easily won it for us- it was a very close series overall.
Lol...120 games minus the playoffs...tell me, is Hainsey an NHL top pairing D in 2019? Tell me, how did our defense do last year in the playoffs? Tell me, how did our defense do 2 years ago in the playoffs?
If you think our defense has a shot at competing for the cup, then i don't know what to tell you.
I am a huge Leafs fan, but let's be real here....our D is not physical enough to compete in a 7 game series. All the opponent has to do is dump the puck in on the right side. Name another cup contender with a RHD core as bad as Hainsey/Zaitsev/Oz.
We might have the worst RHD in the league but the best LHD group (or at least very close to the best) in the league. We need an upgrade for sure either way on our right side.
I wouldn't be so hard on the Leafs though. Boston was the best team in the NHL since the new year, last season, and are a top 5 team in the NHL roughly, by my books. They ice the best line in hockey and play a brand of hockey that can translate very well in the playoffs if the refs swallow their whistles. They have their weaknesses, which we began to figure out as the series went on (like skating them to the ground). No shame losing to them in a series where very elementary differences could have won us the series.
You also have to consider our core group was and still is very young so there's more room for optimism either way.
IMO, our series took a toll on Boston and that led to their early exit against Tampa.