Socket graft 4 wks after exo: bio-oss in socket?

Upper first premolar removed 4 weeks ago due to an abscess. Buccal bone fenestration noted during socket curetting CBCT taken two weeks after the exo appt to confirm the bone defect. (as below) Socket preservation was treatment planned to carry out in a few days which will be 4 wks after the initial exo appt. My question is, if the tx plan is NOT to be changed, would you clean out the stuff in the socket completely and fill it with Bio-oss? or would you mix the bio-oss with the newborn tissue in the socket?