Steve Clarke believes West Brom's desire for a winning goal cost them a 2-1 defeat to 10-man Manchester City at The Hawthorns.
The Baggies surrendered their 100 per cent home record after Edin Dzeko came off the City bench to earn the Premier League champions a come-from-behind win.
Both sides went in search of a winning goal after Dzeko cancelled out Shane Long's opener, and Clarke believes the Baggies paid for their positive approach.
Clarke said: "I thought we deserved something out of the game. I thought we played well, stood up to Manchester City, but they showed when they went to 10 men that they are champions for a reason.
"Credit to them, their performance with 10 men was excellent and the only feeling I have now is being disappointed to lose the game so late.
"It was maybe a bad decision to go chasing the winner rather than settling for a point.
"We still wanted to win the game. It is a mindset and characteristic we have got here and are trying to put into the players.
"We wanted to win the game but you get a corner in injury time and think you can win it. Maybe we should have been a bit more careful and maybe settled for a point."
As regards the Milner red card, Clarke admitted: "It was a marginal one. If it had gone against us, maybe I would have been disappointed."