i don't think he would really care too much about the rivalry between the 2 clubs, at the end of the day cardiff has bigger problems to worry about rather than worrying about whether liverpool are title contenders or not. quite a stupid and irrelevant question to ask really
He was a boss at Twente, played a nice tournament in the EC2008 went to PSV, became captain and did above good but his last season they didn't needed him anymore and wanted to get rid off him.