While speaking with The Ringer, the two explained that for the haircut scene, Saar Klein didn’t have much to work with when he got the footage, as Doug Liman only did two takes. Still, Saar Klein made it work and didn’t need to cut and mess around with too much.
Article source: https://www.cinemablend.com/news/2548600/one-criticism-the-bourne-identitys-editor-knows-the-franchise-always-gets