Within an action research framework involving primary teachers and university professors, based on a Delphi study, those in charge of training future primary school teachers (at a Spanish university) identified and agreed upon measures that they thought were appropriate for improving the training programs in which they participated. A total of 84 different items were presented and discussed. A reasonable level of consensus was reached regarding 45 of these items. Data gathered includes guidelines on how to improve the training program and shows the benefit of having teachers and university professors reflect, contrast and assess their points of view.