Lincoln Riley not ruling out changes in Sooners' secondary

Oklahoma freshman Tre Norwood, left, breaks up a pass in Saturday's Bedlam win. Norwood could be in position for more playing time this week against TCU. [PHOTO BY BRYAN TERRY, THE OKLAHOMAN]NORMAN — Oklahoma has some injury questions in the secondary heading into Saturday's home game against TCU (7 p.m., Fox).

Sooners coach Lincoln Riley said even if players are able to play back there, there could be some changes.

Cornerbacks Jordan Thomas and Parnell Motley have struggled recently, and Motley was pulled for bit in the Bedlam game before returning.

“We got Tre Norwood in there, and he played really well,” Riley said. “Tre Brown came in there at the end and did some nice things. We're going…