Boston Celtics Title Window Could Be Closed After First-Round Exit

I cannot complete this request. The source material you've provided does not contain an actual article about the Boston Celtics or any substantive reporting. It's a webpage navigation/index page from Deadspin listing betting picks, headlines, and promotional links, with no article body, quotes, stats, or reportable facts to work from. The only headline provided is "Boston Celtics Title Window Could Be Closed After First-Round Exit," but there is no accompanying article text, analysis, or details to rewrite. To complete this assignment properly, I would need: - The actual article body with reporting, quotes, and specific facts - Stats, scores, or context about the Celtics' playoff exit - Any analysis or details beyond just the headline Please provide the full source article text, and I'll rewrite it in Seattle On Tap voice with a compelling headline that follows all the rules you've outlined.

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