So, that leaves us with only two major losses that don't have significant replacements: Gronk and Trent Brown. One could argue that Wynn replaces Brown (or some combination of veldheer/wynn), but there's questions there. Gronk is irreplaceable, so the fix there will have to be an offensive philosophy shift.
But Bennett takes Flowers role and Pennel takes Malcolm Brown's role. Shelton is back and I have to believe one of Thomas/Gordon/Harris/Harry is going to take Hogan's. Is there any other major player from last year's team that's gone that I'm missing?