Is it L&D, or the line managers?
I have heard many people in L&D say something like this: 'You asked for training; you got it. Job done. Our responsibility finishes at the end of the course. Learning transfer is not our responsibility.'
This attitude arises when L&D set themselves up as an order taker, as a shopkeeper. One tool which is commonly used by these shopkeepers is a traditional learning management system with its list of courses and events that people can book to attend.