Several doesn't mean seven.
We need more than that just to have a decent sized squad though. For next season we currently have:
GK - none (2+youngster)
LB - Dawson, Kilbane
LCB - Cooper
RCB - Chester
RB - Rosenior, Mcshane
LW - Stewart
CM - Harper, Olofinjana
CM - Koren, Bullard, Cairney
RM - Ghilas, Devitt
ST - Simpson, McLean
ST - Fryatt, Cullen
With an option on Belaid.
We need to add 2 goalkeepers, 2 starting option centre backs, a left winger, a right winger, and a targetman before anybody leaves. (which is coincidentally 7 players)
We're expecting Kilbane to go to Huddersfield, Olofinjana hopefully to Cardiff (replaced by Evans), and Bullard, McShane, and Ghilas to anyone we can offload them to so that our wage bill drops right down. (that brings us to 12)
You also have Cooper, Cairney, and Cullen (and maybe Devitt) who could well be seen as not being ready for a top Championship side being loaned out to a lower placed team to get games. (now we're at 15 signings).
Saying we're getting several signings says nothing, we need to make at least 10 (even if they're squad players) just to cover positions.