On offense I'll go with Minshew, Robinson, and Taylor. They all go hand in hand. The better the OL does, the better the QB will do. The better the QB does, the better the OL will look.
Robinson fully recovered from ACL and given quite the vote of confidence by the team (not drafting or signing a LT) will become the LT he was drafted to be and showed some signs of being as a rookie.
Taylor actually showed quite a bit of growth during his rookie year. He was flat out bad early in the year and improved greatly as the year wore on. Look for a big jump from this young man.
Minshew showed magic last year in late game heroics and comebacks. However much of this was needed due to ineffectiveness early on in games. Some of that had to do with a lack of protection from the OL. At times he just held the ball too long and wasn't seeing the field clearly. I'm not saying he's going to have an all-pro type season. But he'll improve to the point where fans will stop talking about #1 overall pick and needing some QB from Clemson.

On defense Myles Jack, Taven Bryan, Harrison.
Jack being moved from the mike will help him a lot and we'll see more of what flashed from him as a rookie.
Taven Bryan actually showed up last year and was quietly a solid contributor. He'll never warrant being a first rounder probably but we'll be pleasantly surprised by his play this year I think.
Harrison in year 3 becomes a pro bowl safety, imo. He was good as a rookie, probably should have supplanted Church sooner. Last year he didn't get to shine with the defense in flux but was still very solid. This year he makes a leap.

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