The former defender has been impressed with the way the German has turned the Reds around .
Steve Evans was criticised by Leeds United fans for one of his decisions against Queens Park Rangers last weekend.
Their former manager has wished the Dutchman luck after his appointment was confirmed on Friday.
West Bromwich Albion will take on Tottenham Hotspur at The Hawthorns in the Premier League on Saturday afternoon.
The Hull midfielder has been discussing former club Leeds.
The England winger has been out of action since the end of October.
The legendary striker was visiting the club academy this evening.
Leeds United wonderkid Lewis Cook's performances hold their own up against Hull City's Tom Huddlestone, who he faces this weekend.
The young forward has been a breakout star for the Black Cats this season.
Spurs are on the road at The Hawthorns this weekend.