noneofyourbusines,
If you’re referring to Boeing‘s participation on the Comanche, I agree, they were an added engineering asset, especially for flight control systems. However, that was 25 years ago. From everything I’ve been told by my acquaintances at Sikorsky, engineering support by Boeing on FLRAA was negative value added.
Take this for what it's worth, but I have heard from multiple sources that when it was announced at Bell that Boeing would not be a partner on Valor, there was actual cheering.