Rick Cartman
It is what it is
Sorry I misspoke about the Rams. They've been in 11-personnel 95% of the time (including 266 rush attempts), and have 24 run plays in heavier packages. Obviously that doesn't change the point I was making, but I tend to be thorough and detail-oriented so when I make even a slight tabulation error, I correct it.
You have to distinguish between "formation" and "personnel". Personnel means literally which players are on the field. How many RBs? How many TEs? How many WRs and OLs? That's personnel. You can have 5 Wide Receivers on the field and line up in a FORMATION that looks like an I-Formation or a 2-TE Formation. Formation is just about where people line up.
Is there a trend toward heavier personnel?
Not really. Last year the league as a whole was in 11-personnel (again this is 1 RB, 1 TE, 3 WR) about 52% of the time. This year that's jumped to 64%.
Do you have any data on running plays/passing plays out of the 11-personnel within the league by chance and if there's any indicators?