I think a better solution would be for the 2 or 3 sqds mentioned( or the ones with lower numbers) to combine forces to make one nice size squad that would be a contribution to the leagues as they would most suridly field a full sqd.
TEA
BBC
Raven
1 nice full fielded sqd ready for league play!
BSS was short most of the league as well, so maybe combine two of the 3 aforementioned and the third joins in with BSS.
Just a thought, not that it will happen. I would just like to see new sqds fully fielded to compete!!!
I'm courageous (stupid, ignorant, brazen) enough to offer an expansion of Vipor's idea. After all I'm accustomed to being shot down both in the arenas and the forums.

Perhaps the small squads could maintain their individual identities for purposes of leadership and social activity but agree to having their best pilots fly in a match only team. Kind of like real life sports clubs provide players for regional or national competitions. Choice of a name is open for suggestion but perhaps it could be known as the USAAC match squad.
A combination of the best pilots from say, BSS, BBC and TEA, perhaps even independent pilots also, would offer a formidable challenge to the existing established squads. This could be a great incentive for pilots in the small squads to compete for a place on such a team.
As a separate issue but along the same lines I think it would be a wonderful idea to have an international league with US, UK and GE fielding their best pilots to defend the honor of their respective countries.
Just a thought which might be worth tossing around.