The cost of making all these changes is a reality that the DIA has to face. That leaves them with two options, 1: do a gradual roll out as they are doing or 2: save money and fund raise until you can make a complete change, years down the road. They would be criticized if we didn't get new uniforms for another three years, they would be criticized if we painted all of our logos on the field, and now they are being criticized for a slow rollout.
The point of the rebrand is consistency, yes. Does that mean instant consistency, no. It means they are working towards being completely consistent. That means within the next 5 years all fields, uniforms, and signage will be changed to the new designs when funds allow. Eventually, years down the line we will have a uniform look.
To me the DIA would only be considered incompetent if they replaced the current center field logo with an old slant Illinois or another made up logo not released by Nike.