Lee Carsley has said he does not want to become the permanent Brentford manager after his first game in caretaker charge ended in a 2-0 defeat to Birmingham.

The former Blue also revealed he expects to leave the club at the end of the season with Kevin O'Connor taking his role in charge of the development squad.

The head coach discussed the 2-0 loss to Birmingham and explained the thinking behind some of his decisions.

On lack of penetration

We've had one day to work with the players. We didn't do shape work or tactical stuff. It was the case of using the board and video ahead of the game tonight. We controlled the game well at times, especially in the first half. We need to get the ball forward at a better tempo. I want to see shots, crosses, breaking lines with passes. We need forward momentum and forward runs which I want a a bit more of.

On change in tactics

We were 4-3-1-2 so it looked like 4-4-2 at times or a diamond. The way they were set up, they were compact through the middle but we struggled. You tend to come towards the ball more and that's when you need to stay away from it. That's what we can adjust.

On not wanting the job

No. I'm not. I didn't ask to be a football manager. I love being a coach and love coaching. I'm still involved with England Under-19s. I see the development side of it as a big strength of mine. In terms of when I retired, my first thought wasn't I want to be a manager. I want to coach under-21, under-18 teams – that's where my strength is. At the last two clubs I've ended up caretaker manager but there's probably 90 other managers who are caretaker managers.

Could that change if it's a successful season?

Not really. I'll take it a game at a time. I think it's important that you know your strengths as a person. That burning ambition to, you know, you hear manager talk about, especially who were players, replacing that feeling on a Saturday afternoon; I haven't got that. I had that for 20 odd years but it's a privileged position to be in especially at a club like with the way they're trying to move the club forward. The ambition of the club and direction that it's going in. It's a fantastic job for someone.

Would you get your old job back in the summer?

I wouldn't have thought so. I did this at Coventry and it's difficult to go back. I wouldn't imagine so. Kev's there as well. We did it together for the last three months. I handed him the team sheet book this morning. He's ready for it. The club is in good hands with him. He's seen the changes and is passionate about the club and it's good to be around people like that.

On the last 48 hours

It's been hectic to be honest. On Sunday I was playing for an over 35s team in Birmingham and on Monday I was manager. It's been a long 24 hours. We won 5-2 and I scored two. It was a great weekend.