Sportal.de has Thomas getting a first half yellow card, and going off on 72'. http://www.sportal.de/de/live/mc/buli2/000203.html
This was one of the worst games i have seen for years (from an Eintracht point of view). A horrible perfomance (the result doesn't looks THAT bad, but i have seen no chance for Eintracht in the second half...). Thomas with his first goal of the season and a good performance in the first 20 minutes (until then it was a quite entertaining game ), but the rest
To me it seemed that Thomas starting as forward and was participating in all good actions at the beginning. When Braunschweig got bad (as Alex said, after about 20 to 30 minutes) it seemed that he suddenly played right midfield - where he hardly had further good actions. He scored after Braunschweig had a free kick from 25 m - they did not cross directly, but played over the left wing. The cross from there was converted by Thomas standing close to the right post.
He played the same position in the game against Oberhausen (where he entered the team of the day). I still can not understand what happened in the middle of the first half. They showed that they can play before.