They need 15 actual people, but they are only going to make 15 (maybe even double that, 30) or so offers this week. 3 will accept, 12 will reject. 2 weeks later, they are going to make 12 offers, of which 3 will accept, 9 will reject. And so on. It may be that they make 75 offers eventually, but I don't think they are going to do that this week. This more conservative estimate is in line with the lack of movement we've seen so far. Also, I'd hate to be so optimistic as to imagine they'll be making 75 offers this week. I would much prefer to straddle the line so I don't fall too far when it does happens.