Round 27 and Inter have - at worst - a 7 points lead.
In the last 20 years, only 1 time a team leading in round 27 (or in round 23 when there were 34 rounds) didn't win the scudetto: Milan in 2011/12 (4 pts advantage); In all other 19 seasons, the team that led the table 11 rounds before the end, won it eventually. It never happened to lose a 7 pts advantage and the scudetto so late in the season.
Even if we return to the last decade of the 20th century, we won't find many cases: Juve lost the scudetto in 1999/00 after having a 4 pts advantage 11 rounds before the end; Lazio lost a 5 pts advantage to Milan in 98/99. That's it. Only 3 times in more than 30 seasons, but never when the advantage was this big as it is right now between us and Inter.
Or technically, Juve had a 12 pts advantage on Inter in round 27 in 2005/06 and Inter won the scudetto. So, our best chance to win this scudetto is a new Calciopoli
