Well, whatever the ins and outs of the BMW saga are, I think that Williams need a decent-sized manufacturer to invest in the team. Ron Dennis had to sell TAG some of McLaren soon after he took over the team and sold a little more of McLaren to Mercedes to get their backing. Williams would not need to give away too much equity to secure the investment of car manufacturer, certainly with assurances that they could fully take over the team when Frank Williams and Patrick Head retire. Let's face it, they're not going to continue at Williams for ever and the team will have to be sold on sometime in the future. They may as well plan for it now instead of allowing their team and its legacy to slip into the obisk.
Well it is certain that Williams need more support, but not ,necessarily, a car manufacturer. They need a large sponsor and a good engine supplier, but they have the expertise to do the rest themselves, if they have the finance to do it.
There are still 4 places on the grid unfilled for next year, Williams, Torro Rosso, Force India and even Honda & Toyota may be vulnerable in the next few years. Bernie has to refill the grid, and to get more privateers, like Williams.
I think that Bernie needs to create a playing field that gives well sponsored privateers a good way in, or to maintain their position. That's the way forward, I don't think that many more car manufacturers are likely to be queuing up to join F1, but, with sponsors like Red Bull privateers can do well. (yes I know I just said that TR could be vulnerable, but I don't think that there is an issue over RB sponsorship of the team.)
Strive to be fast, strive to be first but, above all, strive to be alive.
Martin