Technology consultants (and for that matter, most subject matter experts in most domains) tend not to be great at selling. We congratulate ourselves on the "consultative sell", but it only merits the name if there's actually a sale at the end of it. All too often, consultants (and consultants who go on to found companies) do really well with the credibility-building, but not the sale. If you own a tech consultancy, then you need to get on with the selling, and better channel the ability of your…