A family of Microsoft relational database management systems designed for ease of use.
So why have two teams? I agree SSMA is better than the previous Upsizing tool, so why not just replace the old upsizing tool with it and ship it with 2013 providing an add-in to start it up?
And the other obvious question - so why is the Access team so small? It shows a lack of commitment to mid range solution developers.
The concept that to be a developer you have to be into .Net is demeaning to many thousands who have made a living from developing useful solutions through VBA in Excel and Access.