Mwadui FC made the most of their home venue, cruising to the comfortable win the clash, which took place at Mwadui Complex in Shinyanga last weekend.
Malwisi noted his players' failure to properly mark Mwadui FC strikers had the Mbeya club suffer the loss, given they had underrated their opponents.
Speaking after the final whistle, the coach said his players were confident of coming out victorious in the clash, given Mwadui FC were reeling from three defeats in a row going into the match.
"I should say my players let me down. They have committed glaring mistakes, if you look at the two goals, they were scored because of carelessness,'' he disclosed.
''In the first goal, my club's keeper was in good position to boot the ball away from his area, he though delayed and let Mwadui FC striker pounce and drill the ball in, it was merely six minutes into the clash,'' he noted.
''My players, later, lost composure and that proved costly given they let in the second goal.''
Malwisi has, for that matter, asked his players to avoid underrating opponents in the VPL, maintaining they should instead put spirited performance and seek wins.
"They were too disappointed after the match, and they found out how competitive the VPL is and how challenging their coming matches will be,'' he noted.
''I hope they have learnt from the match,'' the coach, who helped Ihefu FC win automatic promotion to the VPL, disclosed.
Ihefu FC that has made its debut appearance in the VPL, won lots of plaudits for putting spirited showing against Simba SC in their first game, despite conceding 2-1 loss to the latter.
Ihefu FC players put stellar performance in the clash and won praise from domestic soccer pundits that predicted the club will scale great heights in domestic soccer.
The squad holds the 15th spot in the VPL table with three points after the completion of the fourth round duels, having conceded loss in three matches and won one game.
The side has netted two goals and leaked five goals.