Bolton wants his own team
Deputy national security adviser Ricky Waddell became the fourth member of John Bolton's team to resign since the start of the week. Bolton took over as Trump's National Security Advisor from H.R. McMaster on Monday.
The word so far is that he's pushing people out to get his own team installed.
That delay and the changeover could be at least part of the reason that the US is doing more posturing than bomb-dropping on Syria.