When Marsh broke through into the England side, she did so as a medium-paced bowler who was a more than a capable batter. Injuries made her reassess her style of bowling and was soon bowling off-spin and to a good enough standard to be bowling England to victory. Her ability to bowl on the powerplay overs was invaluable and she was part of the England side that won both the ICC World Cup and World T20 in 2009.
She has also played some valuable innings with the bat. Injuries forced her to miss a year and a half of cricket before making a comeback and finding a place back in an England side that has a number of spin-bowling options. Being born on the Sussex/Kent border she has represented both the county level, as well Surrey Stars in the Kia Super League with who she helped to the finals day in 2017.