As a Business Owner what your Job should be is to understand your OWN Company Business Model.  This way one can produce and go about the best way to obtain the HIGHEST return on your INVESTMENT.  Otherwise, if you still want to blow your money on PPC Ads give your money to Family / Donations / or sheer fun instead.  It would go to a better cause since PPC Adwords Marketing Campaigns are are waste.  I just don't see the logic in being redundant and repeatedly explaining your self to some PPC FIRM your Company Model.  Instead, one should focus and commit their time to re-evaluating and refining the business model you discovered, created and implemented yourself.  Of course unless your in the typical aggressive Niche Market Ex. Diamonds, Mortgage, Banks etc.... to name a few keywords where those companies budgets is a "drop in the bucket" compared to most and prefer to seek outside counseling for new strategies cause they can afford it.  The thing is they could optimize their own sites seeing they would know the content best.  Don't get me wrong, a second opinion is good.  I just suggest it comes from your inner iron triangle, someone who knows your company and you value their constructive opinion.  Best of all it's free! assuming they are already on the pay-roll....