How many minutes did Jones play? If he was in on every defensive snap, I guess three tackles, a fumble recovery and a hurry or two is no big deal. If he only played half the snaps, it becomes a bigger deal.
He was up against Joe Thomas in the season-ending game last year and didn't seem overmatched.
And 38% is not half the snaps or bordering on half the snaps. It's 38% of the snaps.
Some people constantly root for failure.
So basically if he had played a whole game he would have had 8-9 tackles and was disruptive. I have watched him pick up his game in year 2. He isn't where the Steelers need him these things take time and I do like what I am seeing.
2015 NFL Draft
1) Shane Ray-OLB
2) Quintin Rollins-DB
3) Tre McBride-WR
4) Jeff Heuerman-TE
5) Senquez Golson-DB
6) Kyle Emmanuel-OLB
6) Matt Jones-RB
7) Gerod Holliman-S