The longer they drag it out, the less sense it makes. Why not just get on with the mass arrests now (should have been done before Biden got sworn in).

I'm hearing that the military is still being commanded by Trump behind the scenes and I saw some people say the mass arrests will happen in March now.

But it doesn't make sense to me why the wait? Why not just get on it with it? I can't think of any advantage to letting this play out longer and let Biden continue to damage the country even more.

If a plan is all ready and prepared to do the mass arrests, there's no strategic value in waiting. In fact, the longer you wait the more chances there are for things to go wrong or for the enemy to figure out the plan.