The Whites put in a disappointing display at Hillsborough before the international break, which took the gloss off a fine start to the season.
Speaking on Sky Sports show EFL Matters, former Republic of Ireland international Andrews said: “The goals they conceded in this game were shocking. Second balls and the type of goals, letting runners go.
“In terms of that game I thought it was very very poor.”
Leeds have picked up 20 points from 11 games to sit fifth in the Championship table.
Despite their recent dip in form, Andrews believes Whites boss Thomas Christiansen can be pleased with their start.
He said: “Overall, where they’re sitting in the league I think they can be very content with what they’ve done.
“I just felt when [Christiansen] took over he kept the formula that Gary Monk brought on board last season.
“He had to change it, obviously with Chris Wood going, but the likes of [Ezgjan] Alioski and [Samuel] Saiz coming in, they kept [Pablo] Hernandez and [Kemar] Roofe, they’ve still got good players but maybe they need to tweak it.
“Overall, if they can get plays-offs it’s a very, very good season after another summer of turbulence.”
Leeds are unbeaten at Elland Road ahead of tomorrow’s home game against Reading.
But it is their mixed form on the road – three wins and three defeats against Millwall, Cardiff City and Sheffield Wednesday – which has hampered their progress.
Oldham caretaker boss Richie Wellens said: “We’ve all played at Elland Road, we know what the home fans can do there, they can spur your team on to a win.”