I find the logic here “curious”
>.. Kraft and Moser aren’t just worried about a downsized JSC Mission Control team twiddling its collective thumbs; they are also worried about JSC’s other core competencies: engineering and development. <

NASA sucks at : engineering and development and should not be doing it. Past that, The ed JSC Mission Control team has pretty much all been laid off already?

Like wise the NewSpace saw that "..development of the SLS, is economically unaffordable.." is nonsensical given NASA is a gov agency. Cost is irrelivent, votes are the coin of the realm – and SLS has strong bipartisan support.

Past that – what does Kris Craft suggest? Cancel SLS and NASA has no project at all? He mentioned
"….There are cheaper and nearer term approaches for human space exploration that use existing launch vehicles….."
There are no existing craft that can carry folks beyond LEO — nearly nothing TO LEO. Trying to build up a craft (after its developed) in orbit with Atlas's and Delta's start to get pretty outlandish.

Like it or not. Kill SLS and the US is out of the maned space flight busness for perhaps a generation.

You think I'm kidding? Canada and Britain dropped out of aerospace and space respectively the same way when the last program was killed. Their still out generation later.

To the best of my knowledge they are both very honorable men who are aghast at what they see happening to the HSF infrastructure they were instrumental in establishing.

But, with great respect to them (and I truly mean that); the damage to that infrastructure is not being caused by the SLS. It is being caused by the Obama Administrations non Space Policy.