I'm just not as excited anymore.
Me neither. I have both White and Johnson and I've started the wrong one each week. It's time to get off this hype train. It seems like he either gets stuff when he runs (which happened quite a few times against a crappy Houston and crappy Bengal defense) or he breaks a long one. There is no in between.
If you look at the Bengal game, without him busting out on that 51 yard run, he pretty much got stuffed all day long.(8:03) 28-C.Johnson right guard to HOU 11 for
no gain (98-A.Weaver)
(1:20) 28-C.Johnson up the middle to HOU 28 for
3 yards (47-W.Demps).

08) 28-C.Johnson left end to HOU 9 for 8 yards (56-M.Greenwood).
(2:08) 28-C.Johnson left guard to TEN 22 for 14 yards (24-CC.Brown).
(1:29) 28-C.Johnson left tackle to TEN 35 for 5 yards (94-N.Kalu, 51-C.Thompson).
(1:04) (Shotgun) 28-C.Johnson up the middle to TEN 40 for 5 yards (51-C.Thompson).
(13:10) 28-C.Johnson left guard to TEN 48 for
3 yards (47-W.Demps, 90-M.Williams).
(11:46) 28-C.Johnson up the middle to 50 for
1 yard (59-D.Ryans, 54-Z.Diles).
(7:19) 28-C.Johnson left end pushed ob at HOU 26 for
2 yards (24-CC.Brown).
(1:49) 28-C.Johnson left tackle to TEN 30 for 14 yards (56-M.Greenwood).
(1:08) 28-C.Johnson left tackle to TEN 30 for
no gain (90-M.Williams, 66-Deljuan.Robinson).
(4:20) 28-C.Johnson left guard to TEN 26 for
2 yards (59-D.Ryans).
(3:37) 28-C.Johnson left tackle to TEN 27 for
1 yard (59-D.Ryans, 92-J.Zgonina).
(3:31) 28-C.Johnson right end to TEN 27 for
no gain (59-D.Ryans).
So as you can see, aside from a couple of 14 yards runs, he was pretty much stuffed throughout the game, especially the 2nd half.
I agree with others in that he just doesn't have the frame to be a non-change of pace style back in the NFL. The Warrick Dunn comparisons are warranted.