I'm sure that on Lennon's first couple of solo albums, he could have had any drummer he wanted, but he used Alan White, and Ringo.
On Plastic Ono Band, easily one of the greatest albums ever made, he used Ringo.
On Imagine, he used Alan White, Jim Keltner, and Jim Gordon.
George also used Ringo on Wonderwall Music and All Things Must Pass, The Concert for Bangladesh, Living in the Material World, Dark Horse, Somewhere in England, and Cloud Nine.
Paul used Ringo on Tug of War, Pipes of Peace, Give my Regards to Broad Street, and Flaming Pie.
Keith Moon used Ringo on his solo album, Two Sides of the Moon; Harry Nilsson used him; Leon Russell used him; Peter Frampton used him; as did Howlin' Wolf, BB King and Jackie Lomax.
For a guy with "OK to Middlin'" drum skills, he sure got a lot of phone calls from big name rockers.
And when did John Lennon ever apologize for ANYTHING????