I think Truman just has "Big Hit Syndrome". Instead of staying on his feet, keeping the ballcarrier in front of him, and making a good form tackle, he is trying to knock somebody's hat off, and he is just missing and looking silly in the process. Coach Snyder needs to spend some time working with Jonathan over the next 1.5 weeks to get him back into his 2013 form, where he didn't do anything flashy, but he wasn't clearly the worst player on the field, either.