No. Usually the county team at whose ground a test or, in this case, a one day match is played, provide the sub fielders. As the match was played at Bristol, he was included. Gloustershire didn't have any match today (their match against Somerset was rained off yesterday).
Was taking a look at his averages. He's played 2 County Championship matches, averaging 26.5 in 4 innings. Top score of 68.