The Holy Spirit should decide. For a called minister the Holy Spirit tells them when and where to go. Heresy and immoral life are the only grounds for dismissal. Politics should not decide. This church may be heterodox.
And yet, the congregation issues the call. So once a call is accepted, a called minister has tenure. And as long as he isn't immoral or heretical, he can't be removed. One can cause upheaval, can play 'politics', can be a lousy preacher, not visit the sick etc, but as long as he is moral and non-heretical, he is good to go.
This church may be heterodox.
Really quite an accusation, care to provide any proof of heterodox doctrine, or are you just throwing that out to see if it sticks?