Well, the difference is there are teams willing to pay 100+ million for Rice because he's an overrated Britbong cunt plying his trade in the EPL. Zakaria didn't have a great season, plays in Serie A, was injured, and there just isn't that big of a market for him.
I'd rather take the 15 million (include some bonuses in there as well to push it to 20) and be done with it, rather than be compelled to loan him out again.
After that, we must do whatever we can to dispose of McNuggets and that fucker Arturd.