By Jennifer Piacenti The Patriots returned to the playoffs last season with a 10-7 record, but their over/under at SI Sportsbook for the upcoming season is just 8.5 wins. Patriots quarterback Mac Jones went on an incredible run last season and proved to be an impressively accurate passer in his debut NFL season. Jones, drafted 15th overall by New England in the 2021 NFL draft, posted the second-highest completion percentage (67.6%) and the sixth-highest passer rating (92.5) for a rookie quarterback with at least 300 attempts in NFL history. But with no Josh McDaniels and some combination of Ma…