I got hooked up with Progressive from an independent agent. I went back and talked to the same agent when Progressive bumped my premiums up by about $80/month after my 1-car incident on an icy road. I asked him if he could find any better deals for me. He basically told me that my premiums had gone up because of my accident (duh) and that it would stay on the scale/record that insurance companies use to determine risk for at least 3 years, possibly 5, so I'm probably stuck paying these high premiums for at least that long. No effort at all on his part to check with the 4 (at least) other companies he can sell insurance for. That kind of weakened my faith in him and his independent company. Couldn't help me out despite being a loyal customer of the agency for 8 years or more.
As I said earlier, if you're not satisfied with the job your agent is doing then find a new agent. The way a claim is handled and the way a premium increase is handled are the two biggest measuring sticks in determining whether you have a good agent or not.
These guys get 15% commissions out of the premium you pay. Anyone can sit at a desk, type in your information, issue your policy, and sit back and collect $150-200. It takes a good agent who will make sure you have adequate protection, responsive claims handling, and still get you a low premium that doesn't jump ridiculously high due to one accident/violation.
BTW - are you willing to share how much you pay to Progressive per month? $80/month increase seems rather high for a one-vehicle policy.