I think it is a good move for Delap. [And the others who have moved recently].
The fact that EDS is now 21 years not 23 suggests we had too many players.
The younger lads playing in the EDS last year, Delap, McAtee, Palmer etc don't need more second team football, they need senior football. To assess their development and potential, the club need to see them in competitive action, so Championship football should give both City and the player the right game time and opportunity to take the next step.
Game time for these lads will be limited in the first team this year, and in theory playing against less experienced players in PL2 will not help them grow.