Let me just start by saying that it is good to be back writing for Football Outsiders after a long offseason. It has been a long, dry summer with no football, but that's over now and we can get back to watching the Last Bastion of Hope for Toughness in American Men (copyright 2015, Jim Harbaugh).
If you're new to the column, this is how it typically works: Each year, I pick three teams to cover throughout the season and try to evenly rotate which team I write about each week. The focus will generally be the offensive line of one of the three teams (sometimes it's Xs and Os, sometimes it's personnel).