It was the third time Blues have scored four goals in a game this term, but in their other 14 games they have scored just 15.
"With everything that is going on off the field at the club currently, the passion, commitment and desire of the players is being noticed by our supporters," Clark continued.
"To lose to Stoke on penalties was another example of not getting what we deserve this season. We need to keep chipping away because I know it will turn - let's just hope it's sooner rather than later."
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