For the champions league rank or top 3, I agree that Lazio has a chance. But for the race of Serie A title, I doubt it.
Anyway I agree with you, mate.
Actually, Lazio started this season perfectly, won 2 early matches, and leading the table now. However, I am not really sure they can survive at the top table in the next few weeks. They didn't against strong teams yet, just defeated two weaker teams. That's why I am doubtful if Lazio to be considered as the candidate of the winner. It is still too early to judge Lazio having a great season this year, especially to predict them to win the League title.
AC Milan, Inter, Juventus, Napoli will be opponents to beat if Lazio is to continue leading the table. I doubt Lazio are capable of winning all the match against the teams I mentioned, but of course they still have a chance. Given a fairly good start, Lazio will be counted this season. I want to see how they do it consistently in the first 10 match.