I tell you, Ronald Koeman's a managerial legend.
He did a reasonable job at Vitesse Arnhem which got him the Ajax job. Despite a promising start, he left Ajax trailing in the wake of PSV when he left and headed for Benfica, where he guided them to third (which, lets face it, is the worst possible finish for a big club in Portugal). He then headed back to PSV where he almost contrived to throw away a 12 point lead, winning the title on goal difference.
I saw some of that season. I could have guided PSV to the title.
He also famously played Liverpool in the Champions League at home without a recognised striker in his starting XI.
This Hoddlesque CV got him the Valencia job on 31 October 2007. Koeman won his first game in charge, and that's where the honeymoon ended. His Valencia side have now not won a league game since 10th November. Seven defeats and three draws in the last ten games, including three consecutive defeats have left the Bats in eleventh place, a massive 26 points off Real Madrid and only five off the relegation places. For Spain's third biggest side, a G14 member with an excellent recent European pedigree, it's way off being good enough, but for those who have followed Koeman's managerial career, no surprise at all.