Creative speculation what if Erdogan is playing "good cop bad cop" with the SDF?

Looking at the events in the last few days, realized that a "grand theory" that would explain what is happening on the ground in Syria as follows:

What if Erdogan (and not necessarily him or just him, HTS or the US would also benefit) a dichotomous two possible choices:

- negotiate with HTS and agree to what the SDF considers unfavorable terms

- if you don't want to talk to HTS, then talk with the SNA

This would properly explain why the SNA is being particularly brutal, why HTS is not militarily engaging them and the general direction of things.

What would you guys consider some factors that would support or invalidate this theory?