The business model that the Torrence/CAPCO team uses - buying the parts & having a very sharp crew - has proven itself.
Shumacher's daughter is set up to take over DSR, so there could be something there that's inspiring the exodus.
Whether that's the daughter's vibe, or DSR scaling back, remains to be seen.
Personally, if Capps goes to JFR I'll be disappointed - I like the rise of the smaller teams and think it's better for the sport.