As a short yard specialist Zeke was sorely missed last year. We suffered in the red zone. Pollard is a good back, but he could not run for those tough short yardage situations.
Dallas seems to be going for the mindset of "if we have a good o-line we can plug in any back and have a good enough run game". I think there is some truth to that in today's NFL, but it would be nice to see someone you know is capable of handling the #1 rb duties.
If they had that 4th round pick instead of dealing it for Trey Lance, that's likely used on a rb imo.