When the season started, the Pats were so worried about the WRs that Jackson had a ton of space to run. Then once teams knew that TE never through to WRs they just stuffed the box and there were no lanes to run in. Now that Fitz can spread the field a little, they have to start respecting the passing game, and the lanes will start opening up again.
That's my theory, and I'm hoping for a little win streak now.