Motherwell made it three wins from three in their Betfred Cup group with a comfortable 2-0 win at Dumbarton.
Christian Ilić and Peter Hartley scored in either half to ensure victory, having controlled large parts of the game.
Ilić was one of four changes for Motherwell, with Maguire, Hartley and Grimshaw also coming in. Jake Carroll, Charles Dunne, Liam Donnelly and Sherwin Seedorf dropped out.
On a long pitch at Dumbarton, the visitors had to adapt their normal fast-paced wing play, but did so well.
After knocking at the door for long spells, hitting both the post and the crossbar, the deadlock was broken before the interval in mildly controversial circumstances.
With the ball on the left of the box in Motherwell possession, the linesman’s flag on the near side went up quickly, then immediately back down again, as Hylton and Tait stepped over the ball.
With play then eventually being worked back to Ilić just behind the penalty spot, the Croatian swept home the ball into the bottom left corner to open the scoring.
The home team protested that the linesman had flagged, but the referee waved them away, saying no decision had been made and that play rightly continued.
Motherwell continued to surge forward in the second half, with Hylton in particular causing major trouble down the left side.
The second would come from a set play with 15 minutes to go. Polworth’s corner kick delivery from the right was met by the man who rose highest, with Hartley nodding down into the bottom right corner of the net.
Motherwell’s progression to the knockout stage still isn’t secure, however, with a win required against Annan Athletic to make sure.
Motherwell: Gillespie, Grimshaw, Gallagher, Hartley, Tait, Maguire, Campbell, Polworth (Semple), Hylton, Ilić (Seedorf), Scott (Long).
Subs not used: Carson, Sloth, Livingstone, Donnelly.