For example, a military style boss might value be at work on time, get your timesheet input on time, etc. and does an good job keeping them in check. Most innovative people with ENTP (rational inventor) personality people, or simply creative people will not appreciate that a bit. Result is low employee retention regardless of benefits. Well... that's just an example.
This applies both to male and female bosses. Things I observe in ineffective leaders:
Female bosses automatically associate their ineffective leadership with their gender; Male bosses acts like higher ranked military personnel in an inappropriate setting (like growupkids mentioned); Bosses fail to reevaluate their leadership style based on the data (most productive people keep leaving, they are generally 'kind' enough not giving you the real reason); Bosses do not have actual authority (this happens a lot in Federal Government, bosses can't really fire employees, it's just terrible business); ...