I would add to General Manson's response by referring to a few points I made in my presentation. If the commitment is there to purchase a capability, then it can proceed quickly. If the funding is available, of course, it can proceed. Perhaps the variable in this is how much risk you're willing to accept. Obviously, buying something quickly may induce a risk that this piece of equipment isn't quite as suitable for future missions as you would have wanted it to be had you taken the time to flesh out the total applicability of that particular piece of equipment. Or you may not have the personnel trained in time. So there are things. Doing things more quickly may incur risk. Doing things over a longer period of time, of course, incurs more risk with funding or whatever.
