I've made my feelings known about our current manager on other threads, never a personal attack. Decided to have a look at his professional record over the last 10 years. Not exactly a career as a successful manager over the past decade.
Left the Scotland job.
Birmingham City-relegated from EPL, promoted, then relegated again. (2007/8)
Birmingham City-English League cup won, then relegated again. (2008/9)
Move to Aston Villa (Controversial) narrowly avoided relegation sacked after 1 season (2011/12)
Nottingham Forest-left after 40 day's (mutual consent?) 2012
In the past 6 years Genk (Belgium 2014/15) and Zamalek (Egypt 2016)
How the SFA could appoint him with confidence God only knows.
If i've missed anything feel free to correct me.