Complex sentence: Much like Hess, Johnson left many of the football related decisions up to his management team and tended to avoid the spotlight however, upon hiring head coach Rex Ryan, Johnson had an increased presence as he molded the Jets into his team.
Split into simpler sentences: Much like Hess, Johnson left many of the football related decisions up to his management team and tended to avoid the spotlight. However, upon hiring head coach Rex Ryan, Johnson had an increased presence as he molded the Jets into his team.