When LM flew as BA MAN was a BA hub so it was possible to book LDY-MAN-XXX without the need to collect bags etc. Now MAN T3 is a mess and having to go land side is no fun. Perhaps with the FlyBe/Virgin Connect link MAN will again become a possible hub from LDY. But then FlyBE seem to being axing most of its European SH routes. EMB135/145 and SF3 were originally designed to feed hubs or for thin high revenue routes - FR dominates the point to point.