diff --git a/group_composition_plot/group_composition_plot.pdf b/group_composition_plot/group_composition_plot.pdf
index 23d0968..e9467c9 100644
Binary files a/group_composition_plot/group_composition_plot.pdf and b/group_composition_plot/group_composition_plot.pdf differ
diff --git a/group_composition_plot/plot.py b/group_composition_plot/plot.py
index 3386948..2fecfe4 100644
--- a/group_composition_plot/plot.py
+++ b/group_composition_plot/plot.py
@@ -51,7 +51,7 @@ def read_data(filename):
 fig.legend(activities, title="Activities", loc="center right", bbox_to_anchor=(1.1, 0.5), fontsize=20)
 
 
-fig.savefig("group_composition_plot.png", dpi=300, bbox_inches='tight')
+fig.savefig("group_composition_plot.pdf", bbox_inches='tight')
 # # Adjust layout
 # plt.tight_layout()
 # plt.show()
diff --git a/paper.tex b/paper.tex
index 970dd70..dbfada0 100644
--- a/paper.tex
+++ b/paper.tex
@@ -1,5 +1,6 @@
 \documentclass{article}
 \usepackage[]{biblatex}
+\usepackage{graphicx}
 \usepackage{hyperref}
 \usepackage{xspace}
 
@@ -402,8 +403,29 @@ \subsection{RSE Outreach}
 \section{Realization Strategy}
 
 In the following, we propose a realization strategy for a central institutional RSE department.
-We describe a possible transition pathway, starting from existing structures (described below) that have grown in research alliances such as collaborative research centers or clusters of excellence,
-or also in research departments of an institution.
+We describe a possible transition pathway, starting from existing structures (described below) that have grown in research alliances such as collaborative research centers or clusters of excellence, or also in research departments of an institution.
+
+\subsection{Service Portfolio and existing implementations}
+
+A number of successful installations of RSE departments already exist in Germany and many more exist in other countries, especially the UK and the US.
+In order to understand the service portfolio of these existing RSE departments, we conducted a survey that received a total of twelve responses from Germany, the UK and the US.
+We asked departments for the composition of their service portfolio - the results are shown in figure~\ref{fig:survey}.
+
+\begin{figure}
+\centering
+\includegraphics[width=\textwidth]{./group_composition_plot/group_composition_plot.pdf}
+\caption{National and international examples of RSE departments and their service portfolio: Heidelberg and Princeton offer development services, whereas Jena and Reading focus mostly on teaching and consultation services.}
+\end{figure}
+
+From the gathered data and the additional free text information of the participants we conclude that the service components that we have identified in section~\ref{sec:vision} are indeed relevant for existing RSE departments.
+Additionally, we see a large diversity in the weighting of these components, which is to be expected given the different environments of the RSE departments.
+Within this diverse data, we identified two rather different archetypes of RSE departments: Those that offer development services and those that do not.
+The departments offering such services would typically invest a lot of their resources into this component, where as others put a much larger emphasis on teaching and consultation services.
+We should note however, that our survey did not collect information about the size of the department.
+It is likely that the departments offering development services are also larger in size, and that their total resource commitment to teaching and consultation services is similar to that of the departments that do not offer development services.
+
+When setting up a new RSE department, it is important to find the best service portfolio composition for the local environment.
+This depends on the demand by scientists at the institution, existing structures and the availability of funding.
 
 \subsection{Network of RSEs}