Flynn has resigned as National Security Advisor only 3 weeks after his official nomination ! The simple question is WHY ? Was he forced to resign ?
It seems many were selected for jobs in the Trump team well before January 20, when Trump officially became the US President. Like Flynn they were all, probably, making telephone calls to ensure they would be ready, before their official nomination ! Trump's style seems to encourage this.
Suddenly there is a kind of "Watergate" suspicion in the air, which means everyone now expects explanations !
Trump must quickly act with authority to defuse the situation. Otherwise he will be spending half his time investigating, to answer growing accusations against different members in his team !