The Northeast 7 on 7 rolls onto Marshwood High School in Maine on Sunday. Here is a preview of each pool. Pool 1 St. Mary’s of Lynn is a program to watch in this pool as is Marshwood. Former Longmeadow coach Alex Rotsko has done a tremendous job with the Marshwood program and they are one of the better programs in the state in his tenure. Tewksbury is also in…