Why would the discovery of gestures produced by signers jeopardize the experimental finding of gesture-speech mismatch?

Mismatch occurs when there is a discrepancy between produced gestures and co-occurring speech. In this commentary, I explore why research on mismatch might be called into question by changing views of what constitutes a gesture. I argue that the experimental procedure for producing mismatch, through its coding methods, is blind to the tight temporal coordination of gesture and affiliated talk.