Consistent odds

I won some more money on Flintoff as leading one-day series scorer. The situation may change with Pietersen's emergence, but I think Freddie is still England's consistently best one day batsman, yet the price never seems to change. He was 11-2 for the series. In a series against Bangladesh last year he top scored in 3 or 4 matches in a row, but again the price never changed. Pietersen may threaten his ability to remain top series scorer, but at the same time that will guarantee the price.
I am expecting also that the price won't change for the last 2 NFL games of the regular season on Tiki Barber as first touchdown scorer in Giants games. I've had him the last 2 weeks and he' s done the business. They're not a big play side and, while Shockey offers an opportunity on a short passing play, Barber is just as likely in that situation, as well as being the only realistic running play scorer, and he's in form. I got 6-1 last week but noticed that one bookie offered 5-1 with each way 1/4 first four, which is surely buying money.