Quote Staffs FC="Staffs FC"Seymour has looked very nervous and made handling mistakes. He's also been one of our best defenders.'"
Looking back at the burrow tackle as an example and a few more I see what you mean, I was judging him based on the display with ball in hand, ignorant of me to dismiss his defensive qualities in this game.
He settled towards the end of the half though so I agree it may be just nerves.
Let's see what he can do in the second half.