This week Casey noted the then historic accomplishment of Fleetwood Mac having four hits that made the top 10, all originating from one album, Rumours. He claimed it was the first album of the 70's to do such, implying an act like the Beatles might've had more. The "originating" word would leave out compilation/Greatest Hits albums or live versions on a concert album.
Michael Jackson would be the first to match that accomplishment with four top 10 hits in 1979-80 with "Off the Wall," and he then crushed the record in 1982-1984 with 7 top 10 hits from "Thriller" which broke open the floodgates for hit albums suddenly having 5 or more singles released, with 4 top 10's being done by rather ordinary artists like Richard Marx or Expose....and the standard became 4 or 5 number one singles from an album (Michael Jackson again, George Michael, Whitney Houston, Janet Jackson, Paula Abdul).
The arrival of the "Soundscan" era of actually counting singles and sales in 1991 brought an end for awhile to such huge numbers of even top 10's, making even 2 #1's from an album a serious accomplishment and the top 10's per album were likewise limited as the charts slowed way down.
That all flipped around again when then whole idea of a single was challenged with streaming music and digital downloads of tracks from albums. Now, for a big name artist like Drake (the master of this!) or Taylor Swift, or even SZA, your opening week for an album might carry many of the tracks into the Hot 100...with Taylor Swift in late 2022 pulling off the ultimate -- she claimed the entire top 10, with only one of those being a traditional radio-pushed single "Anti-Hero."
Ten does seem the natural limit -- to get to 11, you'd have to do the Taylor trick of covering the top 10 your first week then push one of the rest of the tracks later to radio eventually get to top 10 status, knowing that on initial release, it was not a fan favorite.
Given that Thriller only had 9 tracks to begin with, it demonstrates how fundamentally music purchasing and marketing has changed.