Typical United. We've been doing it for years. Apparently we're so fearful of losing money by letting players leave for free, we hand them large long term contracts, thus pricing them out of a move because clubs on their level aren't rich and stupid like us, meaning we not only lose any potential fee for them, but we're left paying wages for players who barely contribute.
Thankfully on this occasion Lingard isn't interested in signing a contract and wasting what's left of his career. Lingard has more sense than the cretins who run our club.