Since the passing of Steve Jobs, Apple has not been about creating the most user-friendly products, but rather about cutting corners to maximize profits. Tim Cook is doing an excellent job at not making the most beneficial products for customers and instead focusing on pleasing shareholders. Apple's board loves the fact that Cook is doing that, so they will not oust him.
Ternus is similar to Cook. The most Jobs-like CEO would be Scott Forstall, but the Apple board doesn't want another Jobs. The Apple board wants another Cook, because the Apple board are greedy corportate scum, just like Cook, whose main desire is to maximize profits and please shareholders, and to achieve that by cutting corners on products and giving customers less for their money.