The AP polls work because the game doesn’t change from year to year and only a few members from each team change. Also, writers can evaluate recruits and make judgements based on that. So, ranks can be established at the start of the season.
They work because each team has at least one game every week (depending on the sport). There are teams who only go to one regional.
I liked the idea at first, but after thinking about it, it doesn’t seem feasible for the reasons I’ve listed above.

