Momentary inconsistent? Tell me please, how many goals have Pedro and Alexis scored cumulatively in their last 60 appearances or so? That is not momentary, it is quite permanent.
And how much time does Alexis need exactly? I think we have seen enough of him to evaluate so that we can evaluate. If he picks his form up a bit, that would be the momentary or the temporary for me. I would expect him to return to his long term average.
Villa furthermore, is highly unlikely to regain form after his injury. So, the naked reality is that minus Messi, we have 0 goalscorers. That this is lost on so many Cules just because we are leading Madrid (some of our games were lucky victories, Osasuna, Betis, Sevilla and even Granada)
Wait until we draw a Juve, or a Bayern, or a Madrid, and Messi will have to shrug off 7 defenders time and again. Just because we can beat Celta Vigo and Mallorca and Getafe, it does not mean that we should be 100% happy with all of our players.