Metallica have admitted they “weren’t equipped” to deal with former bassist Jason Newsted’s exit in 2001.He played with the band from 1986 but quit after becoming frustrated over his lack of creative input.Now, the band have admitted had they been equipped with a different mindset, Newsted may have remained in Metallica.“Jason is the only member of Metallica who has ever left willingly,” drummer Lars Ulrich told Apple Music in a new interview. “And that in itself is a statistic.