As a football data scientist, I break down Barcelona's imminent signing of Nico Williams from Athletic Bilbao. The 6-year contract with a reported €7-8M annual salary raises intriguing questions about value and strategy. Using Opta metrics and my proprietary player evaluation models, I'll examine whether this represents smart business or financial recklessness in Barça's ongoing rebuild. Spoiler: the xG numbers tell an interesting story.