I do wish we'd vary the length of the less prestigious series depending on the quality of the opponents. I remember watching a 2 test SL series when I was in Rajasthan c.2012. Ended 1-1 after a magic KP knock in the 2nd test. When they had Sanga and Jaya and we had Swann and proper batsmen.
That really should have been 4 tests at least. The NZ series just gone could have done with a 3rd test. We should stop playing the ODIs. We don't play domestic 50-over matches so we'll never win it again.