Benefits of virtualization software, security concerns highlighted by server sprawl

Discuss the benefits of virtualization software, as described in the text (Page 138 of attachment). Do you agree/disagree with these benefits, or can you think of additional benefits not already presented?

Also discuss the security concerns highlighted by server sprawl and how you would propose to solve those in your (real or hypothetical) organization.

—At least one scholarly source should be used. Use proper citations and references in your post.