The Department for Transport are causing the problems in the dispute between Southern Rail and unions, according to train drivers' body Aslef.
The union says it will ballot train drivers on industrial action, meanwhile the RMT union continues its 72-hour strike this week. They are involved in the same dispute about the role of conductors.
President of the Aslef train drivers union Tosh McDonald told Jonny Gould and Ash: "Strikes are a last resort.
"Aslef have got to a situation with Southern where they're continually wanting to make job cuts and continually wanting to impose new terms and conditions on our members. When we try and negotiate with them we get no where.
"It's actually the Department for Transport who are...calling all the shots [and] Southern just dance to that tune. I don't think they're even able to negotiate with us.
"Human resources really make a bad situation very much worse in most cases we deal with," he added. "I don't think the majority of human resource managers - obviously there's an exception to every rule - have a clue about the real world and what people are dealing with."
Listen to the full interview to find out more