Leddy had at 1449.47 5 on 5 minutes, which is higher than most of his career, but still in line with his time on the Islanders.
...except for the first year there which happens to be the one where he put up great numbers. He played 16:12 a night at 5 on 5 that season vs mid-tier competition.
After that, he was elevated to a larger role. In the rest of his time on the Island, he played between 17:18 and 18:09 per night at 5 on 5. For reference, he was at 18:33 a night last year.
He put up career worst xGA/60 and bottom 3 GA/60. Basically every metric but notoriously finicky ones like giveaways/takeaways don't even sniff where he was regularly reaching in the front half of his career and that's not even mentioning that he had half of the point production.
In this stretch where he played 17+ 5 on 5 minutes a night on the Island, he went -58 over 440 games on a team that had a +53 goal differential over the same stretch. He had the worst +/- of any defender on the Islanders in 2015/16, 2017/18 (he was an astonishing -42 while the next worst was -9), 2018/19, and 2020/21. He was 2nd worst in 2019/20 and 3rd worst in 2016/17.
He was 2.45 GA per 60 at 5 on 5 in 2015/16, which was dead last among all 7 D who played 50+ games for the Isles. His 2.49 in 2016/17 was 4th on the team. His 3.49 in 2017/18 was last again. His 2.41 in 2018/19 was last again. His 2.55 in 2019/20 was 2nd to last. His 2.28 in 2020/21 was last again. The Isles were a
significantly better team defensively than the Blues were last year. They allowed 2.76 goals per game while Leddy was logging top pair minutes while the Blues allowed 3.63 per game.
When the the Isle's team defense (and/or goaltending) is preventing .87 goals per game more than last year's Blues team and he is allowing more goals than everyone else in the top 4, I don't consider being in the mid-2s as more effective than being at 2.82 on the Blues (and being 1st among the top 4).
In his time with Chicago, he only had 1 season where he played more than 14 minutes a night at 5 on 5. In that season, his numbers were uglier than they were this year and he was being sheltered by Keith, Seabrook, and Hjalmarsson taking the hard minutes. He started in the O-zone 55% of time and only had 3 more even strength points.
I just don't agree that he was ineffective in his role this year. He went +4 overall. -3 at 5 on 5. That's succeeding when you're on the most defensively oriented top pair of the last decade. 23 even strength points basically playing even in that role is being effective.
His career high is 31 even strength points and that was the only time he hit 30. He's been a low-to-mid 20 even strength points guy pretty much his entire career in either offensive or balanced usage. The PP points do nothing for me. The Isles PP was 25th in the league over the years when he was there picking up 10-20 PP points a year as their top PP QB. He didn't demonstrate high end offensive ability on the PP that moves the needle for me.