Stagnate: "cease developing, become inactive or dull"
He moved to Everton 2002/3 season, when they finished 7th on 59 points.
He left in 2012/13 season, when they finished 6th on 63 points.
A decade long stagnance where he reached the dizzy heights of 5th, twice, but in typical Moyes mediocrity fashion, also finished outside the top ten... Twice. One of which times just avoiding relegation in 2004.
Ceased developing & certainly dull.
See stats above.
Also, regarding budget... How did he do at Old Trafford with an abundance of wealth?
The Moyes sympathisers astound me.
Funny, I'd have thought the "dizzying heights" of 5th on two occasions for a team like Everton is an absolutely fantastic achievement. Obviously it isn't and it's worthy of mockery so carry on.
He actually moved to Everton a season earlier than you say and saved them from relegation. To go from that to the "dizzying heights" of 5th on numerous occasions is some turnaround.