Not even really profit-driven, unless you assume Song was going to decline in value for the coming season.
Essien surely wouldn't come on less than Song's wages and Song would've been worth the same next summer, so it would be an odd sequence of events.
It seems we took a punt on getting Sahin to replace Song and then cheaped out on the deal. :gah:
Suppose we may still sign M'Vila. Patience, patience.