The housing isn't enough, as in - it doesn't fix the issues in the people. There needs to be a fundamental change in the way we live as a society so that the potential homeless never become homeless in the first place. Throwing money at the problem doesn't help.
The current thought is to solve the security problem that homeless created downtown Seattle is to bring more workers back to the offices...
"Corporate workers, keeping your streets safe"
I guess they will then be accused of stealing police jobs :D