Should teachers crowdsource their lesson plans?

From Time:

Standards and testing may hog the spotlight in education, but they spell out only what students should be able to do, not how to get kids to learn those skills. Lesson plans are teachers’ tools: lend someone a better hammer, and he’ll do a better job. But a lousy carpenter can’t fake it even with the greatest tools money can buy, and the lesson plans that come with textbooks often aren’t very engaging or aren’t in line with the Common Core State Standards that 45 states recently