Announcers (Madden in particular) always harp on how selfless he is (like when he lets Edge get a couple of carries near the goalline) but I think it is possible that not putting up numbers is bothering him more than he is letting on.
Marvin Harrison is a borderline psychopath IMO. The guy seems like a non-emotional, selfless, high character WR. Basically the Anti-TO, so the media loves him. They love him so much, that they overlooked a couple incidents earlier in his career when he choked some kids... A kid seeking his autograph at an untimely moment = choke. Ballboy did something that angered Marvin = choke. I didn't believe it at first, but when you see Marvin react to things he doesn't like during the game you can see that fire in his eyes.
Under the surface, you can tell the guy is a major hothead. That selflessness is just an act IMO. Like when he ran up to Manning and gave him the record ball like he was his lapdog, that was an act. What does the media remember though, the touching record breaking moment, or the incident where Marvin chokes a ball boy.
From a fantasy perspective I love the guy though. He gets open and makes plays when the ball is thrown his way. The real problem this season, and last season for that matter, is that Manning has too many options to throw to. Manning seems to forgets who made him a star/touchdown machine in the first place. Without Harrison, maybe Manning is just a "good" QB like we're seeing this season, and not a "great" QB like we are all lead to believe.
Fact is, Marvin could have easily had 3 touchdowns last night if Manning was on his game. One pass - Harrison was wide open in the endzone, and Manning throws it in the dirt. I'm talking wide open on a slant pattern, all day to throw the ball, Manning skips the rock while 20 other QBs in the league are connecting to Marvin on the touchdown.
Another time, Marvin beats double coverage down the field, he's wide open and Manning throws long. That's an understandable miss, but when Manning is only throwing the ball to his money man 5, 6 times a game you gotta make those throws.
There have been several instances this season where Manning hasn't looked Harrison's way like in the past and Harrison hasn't given the opportunity to make some catches. This can explain the season long funk that Manning has been in and the success that Edge has been seeing this season around the goalline and in general. Manning is treating Wayne like a #1B WR and defenses recognize this. Harrison isn't drawing the coverage. Wayne isn't making the big plays. Spreading the ball in Indy = bad thing.
I hope Manning shapes up soon, or Harrison might start choking some fans or something.