He told Sky Sports: "I always thought I would finish my career at Chelsea but when it was decided I would be moving on because they wanted to make changes in the squad, that obviously opened up a different path for me.
"Looking back, that was positive because I had two big experiences - one in Manchester for a year and another in New York for 18 months.
"I formed a lot of my ideas about how I wanted to manage in those later years of my career because you think more as you get older and you assess more. When I watched football, I would watch managers intently to see the things that are important to them. I have huge respect for Pep Guardiola, Jurgen Klopp and Mauricio Pochettino now."