It's an interesting question, well two questions really:In the end, if he finishes this season in the bottom half it would be considered a failed season. Sack would be inevitable...
1. In July, what end-of-season league position would people have considered the difference between success and failure for Frank?
2. And what about right now? (if it's different - I don't think it is for me, or certainly not much - perhaps I'll allow him 2 positions leeway due to having no Dom, Kulu or Mads for so long)
For me, given the squad he has at his disposal, I'd say 10th or above would be reasonably successful as long as there are positive signs in the actual play and performances (would have been 8th with a full squad). 11th or lower would be unacceptable. I know they are relatively arbitrary numbers, and I know other factors definitely come into play (for example, our stats, xG etc, being either staying very low or gradually improving etc) but I wonder where 'the line' is for others. (And of course that line might be in a totally different place for the Board).