First off, good call Instinctive. That was very ballsy, but it's nice to know you stick to your guts when you make a call. I haven't seen the game and the stats for who played what plays aren't out yet on profootballfocus but I knew it was too early to count Harrison out completely. In previous games, especially the Steelers game, Harrison still played an important role despite having less carries than Jennings. He started the game and had 7 carries to Jennings 5 until the second half. Of course, at that point, Jennings averaged 5.80 while Harrison averaged 1.29. Whether or not that was because of his illness, obviously the hot hand played a role in the decision to favor Jennings in the second half who had 15 more carries for 2.93 and Harrison had zero. This didn't mean that Harrison did not participate in the game at all though. In fact, he was in for 4 out of the 5 passing plays in the second half. If they had thrown the ball more like they did earlier and didn't have a lead over the Steelers to protect, you would have seen stats similar to the first half of that game in the second half. Interestingly, Harrison was in for 14 of those first half passing plays while Jennings was in none. Hence, you can see the pattern of get the lead back, keep the lead back. What this meant was that they still didn't trust Jennings to pass block and liked Harrison's receiving skills. Despite his great game in Steelers, it was obvious coming into the Kansas City game that his ceiling would be limited by that factor. Combine it with the Cribbs factor (whose increase in touches could also be attributed to the lead and hot hand) and it made it very difficult to judge the landscape of the Kansas City Game.
However, as I noted in a thread about Jennings vs Harrison before the game, I thought it would be a high scoring affair between two poor teams with even worse defenses. Possibly like the Cleveland vs Lions game. If you thought the scenario would be like that as well then you would see Jennings having less touches because the game would be very competitive and there would be more use for a passing down back than a closer. This didn't mean Jennings was out of the picture completely but it made him less appealing than if he were the go-to guy who would have a monster share against KC. I thought that Harrison would have some value in the game because of that but his ceiling would have been limited.
To make sense of starting Harrison, most of the change of pace backs who went up against them faired well
Sproles (wk 7) - 5 cars, 41 rush yards, 3 rec, 58 rec yards, 1 rec td
Sproles (wk 12) - 9 cars, 17 rush yards, 5 rec, 66 rec yards
Buckhalter - 12 cars, 113 rush yards, 3 rec, 15 rec yards
Bradshaw - 12 cars, 64 rush yards
Lynch - 12 cars, 84 rush yards, 3 rec, 10 yards
And if you looked at the scenario with SD vs Cleveland it made sense. This game resembled the SD game more where it was highly competitive and Harrison was in for 75% of the plays to Jennings 25%. There were a lot of passing plays that game and less running plays so Harrison had more value. The RBs only ran the ball 15 times that game though. No one could have predicted they would run the ball 49 times and pass it 18 times in a high scoring competitive game against KC.
Without looking at the playing breakdown, my best guess is that Harrison started the game, played during passing downs because of his superior pass blocking/receiving skills, and because KC was putting points up against them he stayed in, got a few carries, was hot, and they continued to ride him. As far as the Oakland game is concerned, I think you could see two things happen depending on the game scenarios. If it's a highly competitive game like KC, Detroit, and SD were then you will see more of harrison but if it's more of a blow out like against the Steelers or a low scoring affair like the game against the Bills then they will want to grind the ball out and there would be less need for Harrison so you *might* see more of Jennings. Harrison is safer because he can pass block and receive so he will get the start. If he has a hot hand they continue to ride him but if Jennings/Cribbs outshine him and they gain a huge lead then I could see him playing less. Definitely like Harrison though, he had what I hoped for in Foster, a receiving/blocking back who is in for both running and passing plays and has a good matchup. Only he had history and a marginally better coach. I'd play him against Oak if I still had him but I dropped him for Foster in multiple leagues