Replacing trustees without founder's support (who is also a trustee). What can I do? (Anonymous post 🤫)

I have recently undertaken the role of Program Coordinator for a small charity running Programs for post-cancer individuals. I am the only employed member of staff, above me is the Founder and trustees. When the organisation was started, there were 6 appointed trustees including the Founder.

Since they launched, they do not appear to have had a single trustee meeting and the trustees include the Founder and his wife who also own a closely linked profit making company, plus 4 individuals who have zero interest in the charity. One of which I would say also has a conflict of interest as was previously employed by the closely linked company also owned by the Founder.

I am looking into the process of replacing all trustees and trying to organise the charity into some sort of structure but it is very unfamiliar territory and I really don't know where to start. The Founder has been very reluctant to change anything and wants to continue to essentially make all decisions himself but is allowing me to make necessary changes so I have put out adverts for Trustees with actual useful skills and backgrounds to help guide the charity in it's objectives and so we can start making decisions following the correct protocol, but quite honestly I feel quite lost as to where to start. 

I was not employed for this and do not have background knowledge in anything relevant but as I am the only employee and above me seem very disinterested, but I cannot continue to work under the current set up with the knowledge that things are being managed so poorly.

Is there anywhere I can go for actual constructive advice to help me create a plan of action and put things into place?