Meh, Bernstein basically read the entire article on the Score yesterday. I don't think the plexiglas principle is a terrible argument, when you look at it historically its been very accurate. It doesn't mean the Cubs are guaranteed to take a step back just that we can't necessarily count on being as healthy as we were last year (particularly with our starters), can't count on leading baseball in walk off wins, can't count on our young players not having sophomore slumps (which tbh is a dumber principle than plexiglas), can't count on the back end of the bullpen being as good and (relatively) consistent, etc. A lot can go wrong in a season, and the fact that Sheehan, who is a strong believer of the plexiglass principle, is still picking the Cubs to win the division and 90 games tells you a lot about how good and deep the Cubs are. That's basically what I said. Except applying the plexiglas principle is dumb. This isn't a team that had a few guys overperform and suddenly have a good year. This is a team that drastically overhauled its roster, with only a handful of (the good ones) players from the 2014 opening day roster being part of the team that ran roughshod on the NL in the second half last year. The 2014 team is as close to irrelevant re: the 2016 (or 2015, for that matter) team as can be. That roster has no bearing whatsoever on what the 2016 team will do. Of course teams that have huge jumps in win totals often don't repeat it (even though the sample size doesn't really prove anything about anythign)...teams that have huge jumps in win totals have huge win totals typically. And having huge win totals is hard. Repeating them is hard. Neither of those things have anything to do with the 2014 team. Projection models are much more reliable than this questionable "principle," especially in this application. If a team has a reason it's success in a given year is unsustainable or not repeatable, it will be reflected in the projections. He then said something along the lines of, "so don't believe the hype, the Cubs aren't that much better than the Cardinals and Pirates." Except it's not hype. Statistically based projections have the Cubs at a pretty crazily high totals in the mid 90s, and the Pirates and Cardinals somewhere in the mid 80s. Where is the hype biasing these? And why aren't the projections reflecting the plexiglas principle? If it's not obvious, I'm not saying there aren't scenarios where the Cubs take steps back (or win the amount of games he says they will - which is pretty likely). I'm saying it has absolutely nothing to do with the 2014 team that gave 350 PA to Nate Schierholtz, or 300+ PA to Alcantara, or 200+ PA to Darwin Barney, or 300+ PA to Junior Lake, or 300 PA to Emilio Bonifacio, or 250+ PA to Mike Olt, or 31 starts to Travis Wood, 27 to Edwin Jackson, etc.