Good or bad? Ask the residents at the program.
For instance, new attendings straight from the program are awesome for residents just starting off; they know the system, are frequently sympathetic to the resident, and are great for beginner cases. They're also great for senior residents seeking to learn more about the job process.
Also, why are the residents staying? If you're a Cleveland Clinic resident and want to do cardiac, you probably didn't learn all there was to know about cards as a resident.
At our program, we've recently had a recent influx of top-notch attendings who don't do things the "traditional" way. Sticking around in these specialties seems to make a lot of sense.
Lots of programs try to keep their fellows, too. It's a time in life where you're looking to settle down. If you and your spouse are happy, should there really be a big push to leave just for the sake of leaving?