The Beatles first drummer: John Lennon 'We were cowards when we sacked Pete Best' | Music | Entertainment
As for why Best was fired in the first place there are a number of factors at play. Before his death a couple of years later, Epstein wrote his 1964 autobiography A Cellarful of Noise, that Lennon, McCartney and Harrison felt Best was “too conventional” to be in The Beatles. There was also concern over his drumming ability with McCartney being quoted as saying he was “good, but a bit limited”. While according to The Beatles Anthology, Harrison said: “Pete kept being sick and not showing up for gigs. I was quite responsible for stirring things up. I conspired to get Ringo in for good...
Source: express.co.uk