Are the relative rankings in search results (e.g. moving from 25th to 15th or 2nd to 1st) for a set of pre-defined searches considered poor metrics?
Sure it will be hard to determine if the improvements are due to the cause of SEO or some other update, but using revenue as a metric has the same issue.
(Ideally one would use a "difference in differences"[1] approach, but it could be difficult without good comparators).
Any metric that you choose will have the same problem. The metric may improve over a period because of actions that you take, or they may improve because of something entirely unrelated. This is an important thing to be aware of.
However, there is another problem with metrics. Sometimes, it is too easy to pay too much attention to vanity metrics that won't add anything to your bottom line. Will moving from a 25th place to 1st place for a search help your business? That depends - does that search generate traffic, and does that traffic generate revenue? On the other hand, increasing revenue is never a bad thing.
I'd argue that unless decision makers have too much time on their hands, they're better off focusing on metrics like revenue than metrics like search results. Validity will be a problem across all metrics, but at least there isn't a tendency to optimize useless metrics.
Drop your price by 50%. Or start selling dollar bills for 95 cents - bet your revenue numbers will go off the charts.
I think that's what the previous poster is getting at - getting a lot of revenue isn't hard if you're willing to throw core parts of your business under the bus (say, profitability).
More generally though optimizing for any kind of financial target (whether revenue, profit, or otherwise) can still be gamed like any other metric.
Your salesperson promises the moon to a client, closes a bunch of deals, looks great, and your company takes on a boatload of liability in the process - for example.
Or, to take a real life example - drop the price of your software to 99 cents and ride a huge sales wave but find your clientele unwilling to pay anything more than 99 cents from then on (hellllo mobile apps).
Lots of ways raw revenue/profit isn't by itself a great metric.
Ah - I may have been looking at the wrong end of the conversion funnel - I was thinking more on the lines of how do I find new leads at all?
Oddly I was reading how Buffets first insurance company was focused on writing profitable premiums only - to the extent of seeing shrinking business. It was unusual then and now, so I do take your point.
I increase revenue $1 and increase expense $1.50. If you target profit I could increase profit, but you take 18 months to collect. Free cash flow targets revenue, leading to profit that is collected ahead of expenses. Their may be a more technical definition, but thats the gist.
Except my job is to get you traffic. I don't control how good or crappy your product is. So the biz can think of it in terms of rev but not fair to pay the SEO person on it