Is a LMS necessary for learning?

Harold Jarche compiled a top 10 list of things an administrator would say to justify the purchase of a LMS:

10. It comes with a blog!
9. Vendor has cool conferences
8. We had money left in the budget
7. Everybody else has one
6. Learned about LMS at our last professional development day
5. Had to make up for the staff we laid off
4. Have to keep track of the remaining teaching staff
3. You can’t manage what you don’t measure
2. Kickback from the vendor

1. How else would students learn online?