Lotttts of reasons to be optimistic. A few reasons to be pessimistic, the main one being the bull-pen is still a question, regardless of how well it's been over the 6W streak.
My ratings after 20 games:
Starters - pretty good so far, in particular Bard and Felix. -- 7/10
Offense - Great. Absolutely flowing. Only thing we could be doing more is stealing bases, but without Ells and CC that's taken a hit. -- 9/10
Defense - been so-so. Some great plays (Pedey's grab the other day), but some poor D behind the plate and a couple silly errors. -- 5.5/10
Bullpen - No more needs to be said. Streaking lately, but lacks quality arms. -- 2/10