I don't think there is much difference between him and Giles as bowlers, but Giles is twice a better batsman than him so thats why he is not in the team at the moment. Even when we do decide to play two spinners- possibly in the sub continent next winter, he will struggle to find a place in the team because its not ideal to have 2 left arm spinners in the same team, an off spinner or even better a leg spinner would be far preferable.

Although if Giles is ever injured, he provides a good back up but I fear his time may have gone as an England bowler because he is around the same age as Giles so he is a bit unlucky that his time as coincided with Giles.