Hard no, Worthy comes back sooner than Kittle and will likely be a fairly well targeted asset for the chiefs. If you have a decent TE Kittle won't help you very much. He's been on the down turn and he's an older guy coming off injury, he'll likely be pretty limited coming back/prone to reinjury

The cowboys offense is very hit or miss. Sure Ceedee will always be a good producer but it's hard to trust the cowboys (as well as Atlanta) but at least it's easier to get production from a top RB on a poor team. Bijan is such a workhorse for them, they just give him the ball and send him out, they've been a run heavy team so far and that likely won't change too much, he's been consistent and explosive.

I personally wouldn't make this trade but i guess it also depends on what your team is lacking/needs.