Amric, yes, we can survive after the first ten years!
On the first ten years, I plan to have crushed the pope and Siena. On the next ten, until 1439, I plan to have crushed Aragon, taking his italian possessions plus Malta. At least in SP, the only chance for me against the pope is, as I have already stated, to make a blitzkrieg with the powerfull combination of cavalry and a bankruptcy. Passes the pope threat, I'll be rich enough to war Aragon with my own funds, and have built at least 10 galleys to blockade the aragonese ports and to move my troops to Sardinia and Malta. If I manage to get the Baleares on that war, it's even better yet.
After the first twenty years... two possible immediate approaches: To finish Aragon or to expand into the balkanic coastline except Ragusa. Or maybe send expeditionary forces to Austria or Hungary

... But it will depend on the circunstances. I need to stablish myself prior to make adventures, so the first twenty years will be crucial. As I am farther than each one of you from the "theatre of operations", got to consolidate myself first and soon get a landborder with Genoa.
Having busy day today, couldn't yet put an installment on our AAR.
Just to recall, what plans do you have to your first twenty years?