The Patriots used a variety of defensive fronts throughout practice, including looks with both four- and three-man lines. At this point, it appears that outside linebacker/defensive end Eric Moore will be used mostly as a defensive lineman; the seventh-year veteran joined the defensive line group for positional drills and sprints.
I think based on some of the rumblings today we could see a little more actual 4-3 this year than we saw last year.