Yes if the right provisions are in that contract, a court could decide that he could end up on a garden leave for most likely 6-12 months.Sorry but again you've made that up. The manager is under contract, as per contract law in this country. Breaking the contract against the club the manager would lead to them being unable to work elsewhere. If Brighton continued to honour the contract he would end up on gardening leave. Not so long ago we done just that to a senior person within the club.
It happened to Steve Bruce, who had a nine month notice period and a garden leave clause written into his contract. Whether RDZ and his agents are equally thick to agree to something like that being in his contract, then sure, that could happen as we've seen a handful of times.