The coaching carousel can be as dizzying as the transfer window in the realm of world football. Ah, to be a football manager in the top flight.
Through the muck, the two giants in the field remain Sir Alex Ferguson and Jose Mourinho.
Having signed on with the Red Devils in 1986, Sir Alex is the marathon man of Manchester United. Jose Mourinho is a bit more mercurial, but success has followed him at nearly every stop—a Champions League win with Porto, a treble with Inter Milan, Premier League titles with Chelsea and a La Liga title with current club Real Madrid.
With Pep Guardiola temporarily out of the coaching mix, it's pretty much Sir Alex, The Special One (maybe Arsene Wenger) and everyone else.
There are a handful of managers waiting in the wings who've either achieved some major success at a relatively young age—we're using under-48 as the barometer here—or seem to have that special mix of tactical shrewdness and panache.
Let's take a gander at five who could one day take up the mantle of Mourinho and Ferguson.