There is still a lot of work to be done for the New York Giants before new head coach John Harbaugh’s roster is ready to take the field in September. But while optimism is running at an all-time high, coming out of 1925 Giants Drive that this year will be the start of something special, the national prognosticators need some more convincing, as evidenced by where they put Big Blue in their respective post-draft NFL power rankings. Granted, power rankings don’t mean much, regardless of when they are unveiled–it's what a team does on the field that counts. Still, it’s always interesting to gauge how the national sites view the teams' progress. Let’s run down where the Giants landed. CBS Sports: 25th Count Pete Prisco of CBS Sports as having been impressed with the Giants’ recent draft class. But it all means nothing if the second-year quarterback doesn’t continue his growth. That’s obviously a Giants organizational goal as well.…