Performances give an indication, yes. But I don't think the actual results tell you much.
I'll make a prediction - Everton will get off to a superb start, Silva will be lauded, and it will go tits up by Christmas.
If Silva can, this time around, sustain a team's performances for more than a handful of months then I am happy for this to be quoted and for me to eat my hat.
On a slightly related note, has anyone seen Watford's new home kit?? Awful IMO, doesn't suit them at all.