I edited my earlier post to longer one that explains it all further so read it. But I like to come back to this, Mandzukic can be thanked for overall good service in past years but he is a proven asset of what right now? He is a lumbering technically limited player who cant work as hard as he used to be an asset in effort roleplaying supporting way when his technique and scoring was lacking. He barely ever scored double digit in numbers for us throughout the years, he went 5 months without scoring last season despite playing as CF? (And it haoodnd other seasons too). The failure was not being able to sell him in summer (and ask yourself why, why cant you find suitors if he is proven asset right now).
The Norwegian kid would be hired to score goals, and hopefully alot of them like he is in his current club. Something Mandzukic cant do anymore. Which is why he is going to Qatar.