The Okoroh defection was expected because the commitment was so close to the coach's announcement; but prospects typically commit to a program/school, not a specific coach, although they do develop strong relationships with those coaches... so losing an entire class like this is rather unusual.
The immediate problem isn't whether or not Tyndall is a good recruiter, but that there isn't much left to recruit for the 2014 class; and the very, very few that are left already have established relationships with other coaching staffs.
There are only 2 unsigned players left in the Top 50, 3 in the Top 100, and 7 in the Top 150.
At this point, Tyndall can't really be looking to upgrade; he's just looking to fill out the roster. But that works both ways, too; most schools have already signed their limit. So maybe a couple of those guys come back to the fold once they see that the other schools they're considering are filled up.