When that judgement day come, you'll be probably weighting all the pros and cons, goods and bad, and in my view,
Subconsiously, I'll be having a rating of how he performs each weeks , and against each problems/decisions, and probably average it outs of the course of his tenure. And so far, the raport he got in my head is so bad, that even if he scores 10 on the remaining weeks, he will not make the good enough grade.
I hope it illustrates why I think he's will not be good enough at the end of the season, and I don't need to see the rest of the performance till the end of the season, because the 3/4 of the season is already so damning that the rest of the seasons matters none.
Realistically, if things gets alot better from here on, the best thing you can put that under is "He's started to gain ground", and for me that is still not good enough at the end of the day.
Off course if we're playing shit hot one week, and abysmal the next week for a period of time, you can say the jury is still out, and we will need more time to properly assess him, which is fair. But at this moment, we have a glimpse of "good performance" and the rest is close to "Bad and worst"
The only saving grace Moyes have is that he's replacing a 26years reign, ageing squad, mammoth task, etc etc. But all the defending excuses are perceptions (not in a sense that they're not real, but they're nothing more than a perceived abstract handicap) while his damning arguments are very real (Players revolting, points loses, league position, dumped out of the competitions, stock shares falling down, boring football, etc)