Well er maybe the fact that Bassong was marking the Leeds player who first got a touch from the corner, which then resulted in Beckfords goal. Bassong lost his man, simple. Thats how.
Or maybe we should blame Gomes for the second, as although Dawson gave away the penalty, Gomes could have saved it.
Bassong was so obviously the one who didn't do his job for the first goal.
Some people were blaming Jenas because it hit him FFS. It was just one of those scrappy goals where they got the first touch and it the bounce fell for them.