Fascinated to get the discussion started on this guy, as I expect him to be a very polarizing figure.
On the one hand, he's doesn't seem to have a single dominating trait - he's 6'3" but it's often said he 'plays smaller' and he's not overly fast or explosive - and didn't produce big numbers at OSU. Analytics are likely to say, "don't touch this guy with a 10-foot pole" (e.g. ZWK's numbers hate the guy).
Yet every scouting report I've seen raves about his body control, his sure hands, and especially his route-running. He passes every "eye test" out there: e.g. Matt Waldman's RSP, Turf Show Times.
There's a good detailed evaluation of his pros and cons at the Daily Norseman, but in general people are all over the place with him - some compare Thomas to combine warriors like Charles Johnson, others to #2 / possession guys like Eric Decker.
Bottom line is he's being mocked consistently in the 2nd, occasionally late 1st of the NFL drafts. Who's interested in him at what price in your rookie drafts?