In each of the last two matches the Saddlers have conceded two goals from set-pieces, leaving them vulnerable even against teams who aren't providing much of a threat in other aspects of the game, and Keates believes his players have to work harder to make sure the man they are marking isn't the one hitting the back of the net.
Speaking via the Express & Star, Dean said; "To concede four goals from set-pieces in two games is very frustrating. They are a massive part of the game now. You look at all the data that came out after the World Cup, a lot of goals are now scored from set-plays.
"We work on them but we’ve not scored from one in the league. We have had numerous occasions when it’s gone across the six-yard box and gone out the other side. But on the other side, you have to show pride. We give the lads accountability.
"You watch teams, you see how they operate, what they are doing. Yes, things can change overnight, but you are not far off guessing who is going to be the main threat in the air. You give someone a man and that is your man. I always say to them, if your man doesn’t score, you have done your job."