Fair enough...
I probably disagree with your premise that you likely have to hire VC to go a more sales/marketing approach (hard to say w/o more context). Of all the jobs/areas, sales is the easiest to hire without a large cash outlay. If you had said, "We likely need VC money because we need to rewrite a huge chunk of the code", I would've bought that but to say you need that money to build a sales team doesn't make sense to me.
For example, let's say I have a $1m/yr enterprise software company and we have no sales staff. If I want to go hire a sales person, what is it they want out of the deal? They want a product that meets marketplace needs, is well supported, is easy to demo, has a track record, and then I want to get paid as much as possible for each sale. You've proven that you have a saleable product and a track record, it seems. The next important part is the last part: "for each sale". You pay them commission - maybe not 100% commission at the start but, by month six, they are likely no less than 50% commission. It's far from a no-risk strategy but it's far cheaper than hiring engineers and having to pay 100% salaries w/ no add-on to sales. You could hire a sales manager and three sales people who, after six months, are on 50% commission. Within a year, they're on 100% commission plus bonuses.
With all that being said, yes, I'm making it seem simpler than it is. But, at this stage (and without knowing more about your business), it seems like the above hasn't been considered. A good sales person will drive your marketing for you, at least initially. He/she will say, "I need x and I need y to sell this product." You can then contract out x and y. The big cash outlays are going to be buying lists for the sales people and sending them to conferences.
Lastly, I would say that, if you find it tough to hire/find salespeople willing to work on commission, that either (a) your product price isn't being seen as profitable from a commission salesperson's POV, or (b) they believe either your support or product/market fit are just not good enough for them to make a high commission.
Sorry - I just don't see that as a big deal for a company selling enterprise software.