From the article
@titan_tim mentioned:
Trump believes that Infantino “is respected by everyone around the world, and recognizes he has a special ability to bring people together,” a source close to the president told The Post.
Paolo Zampolli, the Italian-American businessman and diplomat serving as Trump’s special envoy for global partnerships, told The Post that “only President Trump could have such a genius idea.”
“There is some similarity” between the roles of FIFA president and UN secretary-general, said Zampolli, a personal friend of Infantino’s and a former ambassador to the UN for the small island nation of Dominica.

(also: why the fuck does the ny post ask a personal friend of their opinion?)
Trump has fumed about what he views as the UN’s inactivity in mediating major world conflicts
Installing Infantino could improve Trump’s relationship with the UN.
However, if the president is successful, it would come with a steep pay cut for Infantino, who earns
about $6 million a year at FIFA.
Balogun’s reinstatement outraged European nations, but the American loss to Belgium blunted the fallout.
Oh, man...that article's more satire than anything I could've written up. Nothing's going to come of it, of course, but other than Khamenei, I couldn't think of a worse person the US could nominate for that job.