They lost Gronk and won the Super Bowl last season, after years of "experts" saying he was the 2nd most important Patriot after Brady.
Amendola is still like the 4th receiver on their depth chart behind Cooks, Hogan and Mitchell. Plus they have Gronk back and are like 5 deep in solid running backs. They're more than fine.
The bottom line is the Patriots will stay on top as long as Brady can play like Brady and Belichick is pulling the strings.
The Cowboys need to learn how to get the hell out of their own damn way before they worry about how the Patriots are doing.