I mean being open to trying different strings , amps, etc. Continuing to progress as the music changed.
Wikipedia
However, in Los Angeles Jamerson was not working with a steady group of musicians, and he was not as free to improvise. He felt out of place and over time his increased dependence on alcohol affected his work. As other musicians went on to use high-tech amplifiers, round-wound strings, and simpler, more repetitive bass lines incorporating new techniques like
slapping, Jamerson's style fell out of favor with local producers as he was reluctant to try new things. By the 1980s he was unable to get any serious gigs working as a session musician.