Wolverhampton Wanderers earned promotion to the Premier League earlier than they kicked a ball this weekend after Fulham drew 1-1 at home to Brentford on Saturday.
While Wolves can start planning for life back in the top flight, Birmingham are in grave danger of slipping into the third tier of English football.
The Cottagers had appeared set to make Wolves wait after Aleksandar Mitrovic opened the scoring in the 70th minute, but a last-gasp Neal Maupay header means Wolves are now safe inside the top two.
"He came in, he changed the playing style".
Wolves, who have 92 points from 42 games, require a further four points from their final four games to win the title but have done enough mathematically to gain promotion.
Their attention will now turn to clinching the title, with Wolves nine points ahead of second-placed Cardiff.
Speaking on Sky Sports News, Dalrymple added: "He's a superb tactician, he's a superb strategist and he's a superb man-manager".
Their success is not without controversy, however, following their tie-up with Portuguese super-agent Jorge Mendes.
Off the pitch, the west Midlands side have been heavily financed by Chinese owners Fosun, who will now see the club line out with the big boys in 2018/19, with the squad looking well-equipped for top-flight action.