When your team escalates to you, it is not always necessary (or wise) to "accept" the escalation. Sometimes, the right thing to do is to hand the problem back. That doesn't mean being unhelpful, though! The HBR article provides a set of really good questions to help frame these kinds of conversations:

• “What have you tried?”
• “Who—or what—is getting in the way of tackling this?” helps you get to the root of what’s stopping them from solving the problem themself.
• “What support do you need?”
• “What would you do if you were in my seat?”
• “Is there anything else I should know?” leaves them to solve the problem while validating your support.