I think the Pats should see if the Bears want 3 and they should move back to 8, pick up Fields, and get a 3rd, future 2nd, and a future 3rd. At 8 they can then take someone like Fashanu, Latu, Turner, Latham. So you get a look at Fields, get an OL or DL, and a couple of extra picks that should lead to starters.
Bears then take Williams at 1 and Harrison at 3.