And Frank told the Daily Mail: "We all have an ego.
"Mine's not the biggest but it's not the smallest and it's always the ego that gets in the way of good performances and life. Also, I'm realistic in many ways. I'm enjoying my life here. This is probably the perfect football life, working in a good club in London, in the best league in the world with good players, we can compete.
"Do we want to win titles? Yes, that would be nice but it's not do-or-die. I still think it's possible to win a cup and that's the aim, to go as far as possible.
"If a big club one day comes to knock on my door, then I need to consider it but it's not something I'm hunting. I could stay in Brentford for well, forever is probably a crazily long time but I could stay here for a further sustained period.
"One day maybe I need to try something else, I don't know. I'm more open. I'm happy here and sometimes you need to be careful what you wish for. Also, in football you can't plan. Keep your head down, work and see where it takes you."