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Let's face it folks. The NFL 'showcases' teams. They also have to cater to the networks, just as NCF says. This says Indy is on a 1 year 'prove it' deal like teams do with some players.
It's the same thing for the NFL every year. Their goal is balance. Because they admit (Mike North) that 'they can create really good TV schedule that's not such a great team schedule, or make a very fair team schedules that's not going to be their best television'. So balance where everyone complains, but only a little, and hopefully somewhat equally.
If Colts were a big draw (more than other powerhouse teams), they would have more prime time home games. If the Colts ace the test this year and go far (or all the way), they'll get rewarded next year. It's how it works.