Craig Levein admits Dundee United have improved since he left Tannadice to take over as Scotland manager. United are firm favourites for a Europa League place after netting seven goals in two victories against their nearest challengers, Motherwell and Hibernian.
Levein quickly took United from the SPL's bottom club to two top-six finishes in his only two full seasons in charge, but failed to qualify for Europe.
"My part was from when I joined the club until I left in December," Levein said.
"I'm thrilled to bits with what happened in that period and I think they have improved.
"Considering what happened round about the Rangers game, he (Peter Houston) has managed to not just get them back to the point they were at, they have also improved since then.
"That's two fantastic results against teams who are fighting for third place so I've been really impressed.
"There have been a lot of changes going on and it's a huge credit to everybody at the club, in particular Peter."