Johnson should be the happiest running back in the NFL after his rushing attack was awarded with arguably the best run-blocking offensive lineman in the NFL Draft. He was very vocal in 2012 about not having enough help on the line. Like him or not, Johnson still recorded 1,243 yards in 2012 with a less than stellar offensive line.
Warmack was actually the highest rated player on some draft boards. The fact that he went ninth overall shows that he was a rare talent (although it was a weak draft class). Warmack was as dominant on the offensive line in college football as Ndamukong Suh was on the defensive line for Nebraska.
Johnson approved of the selection of Warmack, but he also needs to remember his carries will probably be lessened due to new running back Shonn Greene who can compete for more playing time.
The rushing attack will also get help from their other new guard in former Buffalo Bill Andy Levitre. It is apparent that the Titans went into the offseason with the top priority being to improve the offensive line so it would allow better run opportunities and give Jake Locker more time in the pocket.
Johnson can be as thankful as he wants, but he will have to play every game to win and put his team in the best position to win by running hard every carry.