Probably, I didn't say I agreed with it 100%.
A hiring process would be good. Some type of extra training, didn't Obama recently mention some type of school security program?
I went to two high schools, one had a staff of probably 7 security personnel. One or two were county police officers, the others were trained, either ex-law enforcement or military. The other school had probably 4 security guards and one county police officer always there.
That may get expensive and may be overboard for what say an elementary school would typically see on a weekly basis in terms of typical fights and what not, but the idea is the same.
I know the CT school had recent security installed, but I still think every school should be up to date as well as they could be. My mom use to teach and they had someone off the streets come in with a knife through one of the side entrances, a teacher saw him and asked if they could help him as he didn't have on ID, luckily two male teachers tackled the man and waited for police, a little later better doors/locks were installed. It may be no match for a shotgun or someone REALLY wanting to get in, but it's better than nothing.
You CAN'T make things 100% safe, that's life, but I think there's possibilities that are affordable for counties and offer a little better security.
Not that you disagreed with anything, just saying my own thoughts on the whole security guard thing. I mean the one HS I went to had a large security center, it was like CTU off 24.

Solid wall of security camera screens.