Amini is best known for his classic literature adaptations like Jude, The Four Feathers, and The Wings of the Dove (for which he was nominated for an Oscar). But he seems to be moving into action films these days, like the upcoming Elmore Leonard adaptation Killshot, and he's currently working on James Sallis' Drive for Hugh Jackman. So, Tom Clancy should be a relative breeze in comparison to Leonard, Sallis, and Thomas Hardy.
However, he won't actually be adapting a Clancy book -- Amini will be penning an origin story that reboots the character into a young man, and puts him at the center of an original story. Paramount is hoping that Ryan can become a new franchise, just like they're aiming for with Star Trek, G.I. Joe, Transformers, and Avatar: The Last Airbender, among others.
But really ... is Jack Ryan really worth franchising? I enjoyed The Hunt for Red October and Patriot Games like most of the civilized world, but am hard pressed to name anything very memorable about Ryan. He's not James Bond, with cars, women, and martinis, or Bourne with his amnesia, lethal skills, and boxes of passports. What is he, other than a smart guy who thwarts international plots? I've never read the books, so I could be missing something important. But from what I can see, he just has a cool name, and that translates to a brand these days?