The schools simply do not have the money to hire all the teachers they need to meet skyrocketing demand.Things could be just as bleak next fall — or even worse — depending on how the new state budget shakes out.The cause of the crunch: surging enrollment in the 28-college system, especially in and around big urban areas at schools such as Valencia, Miami Dade College and Seminole State College, where growth is running as high as 10 percent a term, or about twice the normal rate.At the same time, state allocations have not kept up with that growth, leaving the colleges to do more with less.