You're a bit fast and loose with the truth.Maybe rubbish was a little unwarranted, he did keep us in the prem for a few good seasons, but in his last short stint he took over a talented group of players and had a reasonable run to the end of the season playing in the style of Vieira, then reverted to "Hodgson Ball" and nearly got us relegated.
However, as I said SP had a long term plan in place, which was to bring in OG at the end of the season, but had to rush it through due to Roy's rigid way of playing and inability to turn around a side that had previously played well.
You only have to listen to a post match interview with Glasner, where he speaks coherently for 5 minutes about tactics and attitude in a way that Roy would never understand. Which just shows how far we have come in just 18 months.
I hope he has a similar plan for when Glasner leaves us.
We were never in any relegation spot from 6 weeks after he took over, so how did he nearly get us relegated.
Roy was replaced due to ill health and in hospital. Glasner was being lined up for the summer, after Roy's contract expired, but brought forward as Roy unable to continue.