diff --git a/paper.tex b/paper.tex
index 3be772f..f6032c8 100644
--- a/paper.tex
+++ b/paper.tex
@@ -54,7 +54,9 @@
 The focus is not put primarily on the establishment of RSE services in general, as this has been done already elsewhere.
 Instead, we highlight central RSE units.
 Motivation for their existence is discussed, underpinned by working examples both in neighbouring fields as well as outside of Germany.
-The heart of this paper is a vision of a central RSE unit, its structure, and the definition of nine core support modules such a unit may provide.
+The heart of this paper is a vision of a central RSE unit, its structure, and the definition of core support modules.
+These modules include consultation and development services, and infrastructure provisioning.
+RSE units do not need to provide all support modules.
 An initial survey finds that there is considerable diversity within the module distribution, even within the few considered groups.
 We discuss initial observations on possible clusters, but further studies are needed.
 Finally, we discuss realisation strategies.
diff --git a/review_answers/review_2_answers.md b/review_answers/review_2_answers.md
index 54423a1..acf73d3 100644
--- a/review_answers/review_2_answers.md
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@@ -26,6 +26,7 @@
 > You mention "nine core support modules" but do not list them. Add a short list or at least the most important two or three.
 
 **Answer:**
+The actual number of core modules is not important since we expect RSE units to focus on a subset. We have added a selection of modules to illustrate the range.
 
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