Realistically, after getting the B-21 contract they know they won’t get the NGAD contract, as the DoD struggles to maintain the 3 remaining main manufacturers. With LM having the F-35 contract Boeing should be in the prime position - if it wasn’t for their current appalling performance on their programmes which makes them high risk on bith cost and timeframe.
https://www.defensenews.com/air/2023...-ngad-fighter/
Northrop Grumman won’t bid on Air Force’s NGAD fighter