https://www.dallascowboys.com/news/14-what-are-realistic-expectations-for-zeke
I think the combination for all 3 answers are pretty good. He will contribute, but can't do it alone, nor as a full time #1 RB.
Red Zone, short yardage and pass protection, he still has it. But no way he is a 1,000 yard RB anymore. But he can still get them 7 to 10 TD's this year, as that is what they missed.
The RBBC if it works well with Rico and others, need to give Dak just enough to work the passing game, it can be successful, as they discuss as well.