Student choice and employer needs expressed through provision of workplace training may be used as one of the main criteria for the planning of VET provision. Regional authorities often have a good overview of the quality of teaching in schools under their responsibility and can use this knowledge to shape provision in individual schools (for example to reward schools that co-operate with employers). But without clear guidelines and standards these decisions are difficult to justify and might be perceived as ad hoc or unfair. Conversely, decisions that do not adequately reflect the interest of students and/or employers are more likely in the absence of transparency.