Has anybody noticed Dick Advocaat is suddenly 10/1.
Nearly all Dutch managers tend to be strong on tactics and look to play 'technical' football i.e. attacking and passing football. However, I would much prefer Frank de Boer who has now won 4 championships at Ajax. Ronald Koeman, finished second at Feyenoord, and as former top international players, both would command more respect from the players. Although Advocaat has been on the circuit for ever, he's mainly managed mid table clubs. He's a bit of a street fighter, and can rub people up the wrong way.
One excellent Dutch manger would be Bert van Marwijk, the national manger who got Holland to the last World Cup Final, but he had a bad time at Hamburg. Marco van Basten will be at AZ Alkmaar next season, but I don't think he has proven himself. And Martin Jol is still free!
One problem you won't have with a Dutch manager is communication, as they all speak English.