Create a better UI design for clickable expand/collapse area

Issue: [login to view URL] - a standard staff profile. Clicking within the red area displays a popup with the employees details. Clicking on the purple area expands/collapses the direct reports <- this area is tiny, resulting in users often getting the employee information instead. [login to view URL] - is an example of some of profile cards with the direct reports expanded or collapased. Example 1 and 2 png shows some possible solutions to make the clickable area larger i.e. make the button bigger, add a grey line which adds seperation for the 2 click actions, add a different colour section which again seperates the 2 click actions. The new design needs to look slick, has to be usable and makes sense to the user. Maybe provide a couple of ideas to show your thinking; which can be narrowed down to the final design. Ideal candidates will have: - Extensive experience in UI/UX design. - A portfolio demonstrating innovative, user-friendly designs.