The just-announced, everyone-pulling-in-the-same-direction strategy to end — or at least greatly reduce — homelessness in St. Louis County sounds familiar. It also sounds familiarly promising for its makes-sense, shoulda-done-it-decades-ago approach. On May 12, Duluth’s Big 3 nonprofits for helping those who are unhoused — Chum, the Damiano Center, and the Union Gospel Mission — announced they’ll be working and strategizing collaboratively like …