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Once a problem has been brought to you or you have detected it, chill out. You need reflection time to see it clearly to get past the symptoms and down to one or more potential causes. Some strategies for reflection are sleep on it, question yourself, pair with another coach, and go to the source.
I have found that most problems that come up on agile teams can be solved by strengthening or reaffirming an agile practice. Although lightweight, agile frameworks are also amazingly complete. So, sleep on it. Let your mind relax, and see whether you wake in the morning with the answer. Perhaps an agile practice comes to mind. Perhaps something deeper, something that reaffirms the nature of agile itself, arises.