wait? there was politics involved in this too? and i'm not trying to be sarcastic.......but that's what it sounds like.....
Bomber Doctrine vs Fighter. Appropriations are what they are. The Fortress and Liberator were sold as being able to go it alone without escort. Nothing like a war to prove your point. Problem was it had to be done with real lives and they were wrong. 38s got sent to the MTO. Think about that there were escorts in England from the beginning that could have gone with the bombers. Instead they got sent to the MTO.
Check on the history of the Jug in the ETO. They were make shifting DTs, even though birds like the P38, P39 and P40 all had DTs prior to this. By mid 44 the Jugs were carrying 3 DTs and going just about anywhere. Mustangs initially didn't have fuselage tanks and only 75 gallon DTs. This was later changed. The first Jugs in the ETO had no wing pylons or provisions for DTs. Makes you wonder how no one noticed how the LW faired in the B of B without escort, or the RAF early in the war.
The politics were always there. Look at the egos that battled among the ground commanders in the ETO. Leaders have their own agendas and hate having to admit their way might not be the best.