SI.com's NFL personnel expert Michael Lombardi
evaluates the Patriots' units.
Best in the business—do-it-all Brady makes his teammates better.
LaMont Jordan could be the short-yardage/third-down weapon.
With Moss and Welker, everyone else draws single coverage.
Keys are Watson's heath, finding a reliable blocker.
Played well until Super Bowl; Light's health is key.
Big, physical; cannot be moved off the line of scrimmage.
Rookie Jerod Mayo's speed, quickness will enhance front seven.
Disciplined and well-coached; have added youth and speed.
Coverage teams are solid; need more from return game.