Apart from this being your usual crap about how you're not getting answers (despite the fact that and I many others time and time again have given you answers after which you tend to not respond, disappear for a while, then come back and claim the same thing again), you should probably not use the stat that the Leafs had the 4th worst xGA/60 in the entire league when trying to argue that your D wasn't bad.
But since you asked: The Leafs had the 4th worst xGA/60 in the entire league because their D was bad. That's why a team described as having a horrible D can have #'s like that.
Oof.
Guess who was tied with the Leafs for
the 4th worst xGA/60 in the entire league? Washington.
Both teams had an identical xGA/60 of 2.56.
"Oof."
Guess what team had
the 9th worst xGA/60 with 2.50 in the entire league despite having one of the best d-pairings and a Vezina-caliber goalie? Columbus.
That 0.06 difference amounts to about 4 less "expected" goals at 5v5 in a season. Do people think Washington had a Cup caliber defensive core and/or system? How about Columbus? How about Pittsburgh, San Jose or LA? Those latter three all fall into a "middle of the pack" tier of xGA/60 that only amounts to about 10-12 less "expected" goals at 5v5 in a season (vs Toronto). Remember, that's over the course of a whole season. In a 7 game playoff series those differences might statistically amount to 1 TOTAL "expected goal against" over 7 games at 5v5.
On the top end of xGA/60--guess who comfortably
lead the league with a 1.95 xGA/60? Minnesota, who got throttled by Winnipeg in 5 games. Guess who were comfortably
in 2nd & 3rd place for xGA/60? Dallas & St Louis, who didn't even make the playoffs.
Boston was number 4 and they barely held on to beat a "defensively horrible" Leafs squad before getting easily spanked by Tampa in round 2.
That wasn't what LeafFever was arguing though. The poster was (falsely) claiming that posters are going against statistics when saying that the Leafs' D was bad last year. While hilariously pointing to an absolutely dreadful xGA/60 as proof that their D wasn't bad.
I'm quoting and highlighting your follow up comment here because it furthers my point above--which is that
spouting team rankings in various stats is a pretty pointless practice. In fact,
I wish more people would look at the actual numbers because the league having such a high level of parity means that most teams aren't actually separated by much (statistically speaking).
Lastly, the Leafs are definitely not defensive stalwarts by any means, but like others have said, they're nowhere near as bad as many HF posters claim. So statistically a "step back" (let alone the "biggest step back") doesn't actually make much sense given the Leafs changes in the offseason.
They lost 3 of their worst play drivers in Polak, Martin & Komarov (
bottom of the team and negative in both CF% and relCF%) and 2 of their most sheltered players in
Bozak &
JVR. In their place they added an elite #1C and will be promoting (
positive shot differential) 2-way wingers in Johnsson, Kap, & Brown. Their young core avoided sophomore slumps (while Rielly took a big step forward) and should continue to trend up as none of Matthews, Marner or Nylander are anywhere near their prime. Outside of catastrophic injuries to several stars and/or Andersen, they really should be one of the least likely candidates for a step back next year.