You can certainly improve suburban transit to certain job centers, a bit, but only a bit. All the "wah our local transit authority doesn't serve the suburbs enough" complaining misses the point that the suburbs are just not built for mass transit. They're built for cars. Reasonably fast and reasonably frequent service to within .5-.75 miles of job centers in the suburbs just isn't realistic, let alone to/from suburban residential areas.
Fixing this requires infill development, which most areas don't want.
