_workgroups_slider.html.erb

<div class="galleries workgroups touchcarousel black-and-white">
  <ul class="touchcarousel-container">
    <% collection.each do |resource| %>
      <li class="touchcarousel-item">
        <%= link_to resource, { :title => "", "data-placement" => "bottom", :class => "thumbnail" } do %>
          <%= workgroup_cover(resource) %>
        <% end %>
      </li>
    <% end %>
  </ul>
</div>