PFT’s countdown of the top 10 teams begins Friday

On Friday, we’ll start counting down the top 10 teams in PFT’s preseason power rankings. In all, five NFC teams and five AFC clubs have landed in the final 10. To recap, here’s how we’ve ranked the clubs thus far, with a link to our team-by-team previews. Each club’s conference ranking is in parentheses: 11.…