The INSIDER daily digest -- Jan. 22, 2025

This Wednesday INSIDER Daily Digest has news on Pentagon modular open systems approaches, the Sentinel ICBM program and more.

A new Government Accountability Office report recommends the Defense Department "improve how it uses modular open systems approaches":

Pentagon says MOSA Implementation Guidebook 'expected to be released soon'

The Defense Department is developing a method for program offices to conduct a cost-benefit analysis of the pursuit of a modular open systems approach (MOSA) on weapon systems in a wide-ranging MOSA Implementation Guidebook DOD expects to release soon.

Document: GAO report on modular open systems approaches

The Air Force's previous acquisition chief spoke about the Sentinel intercontinental ballistic missile program before leaving office last week:

Hunter: Sentinel progressing toward first flight test while waiting for new milestone B decision

The LGM-35A Sentinel nuclear missile system is progressing toward flight testing, now-former Air Force acquisition chief Andrew Hunter told Inside Defense, even as officials re-baseline the program.

The service tested out a vehicle protection system base kit on the Bradley at Yuma Proving Ground, AZ, where soldiers spent a month with the VBK integrated on the vehicle:

Army tests vehicle protection system on Bradleys

After weeks of testing, Bradley Fighting Vehicle crews have a new layer of protection, a test officer said in a Jan. 16 Army press release.

Inside Defense chatted with outgoing Army acquisition chief Doug Bush last week:

Bush: Munitions demand won't decrease regardless of Ukraine

The Army's concerted effort to ramp up its ammunition capacity in response to the Russia-Ukraine war over the last three years will have key global implications regardless of the Trump administration's approach to Ukraine, Doug Bush said last week as he exited his role of assistant secretary of the Army for acquisition, logistics and technology.

Congress worries about foreign energetics procurement, but OIB is in 'excellent shape,' former acquisition chief argues

Congress is concerned about the Army procuring energetic materials outside the United States, but that's the way it's always been done, argued Doug Bush, the service's previous acquisition chief, before he left office.