Before accepting employment:
If the management team don’t like you they are prepared to lie, bully and conspire to have you removed from the company. So ensure you have enough savings to be able to afford an tribunal.
Also, don’t forget that you won’t get your legal costs back even if you win. I spoke with a solicitor who estimated £8 – £10 thousand to go to tribunal, as a rough estimate. You won’t get that back whatever happens.
And don’t hope that at some point the trustees or senior management team will see sense, or have any conscience. If they wan’t you out, you will go.