They all still work for LMG. CSF died pretty much when Nicky V. left to follow his passion (nothing wrong with that). Colton tried to keep it going but it eventually petered out. I too miss the CSF content and seeing all of the fun they had doing crazy and wackey things, but that is just part of the evolution of the company. They have a lot more content they push out now-a-days compared to then when they could just shoot extra fun things on the side.
Jon still writes for Tech Quickie. Dennis's responsibilities have shifted, Taran edits, Colton deals with sales, they are still doing their jobs, just a lot more of it compared to back in the day.
The channel has evolved, people will leave, things will change. But the thing that doesn't change is the drive for more viewers / more income. There is nothing that can be done if the content changes resulting in more viewers gained than lost.
If anything, I would like to see James take over CSF because I like his personality.