To be fair to Barrowman, he was hardly ever played. When he was played, he was either played out of position or didn't receive the service he needs. Rooney appears to be Butchers favoured striker - but why? I'd be embarrassed of his strike ratio.
Rooney:
08/09 (SPL) - 6 goals in 36 appearances (11 starts, 25 sub) = strike rate of 16.66 %
09/10 (SFL) - 13 goals in 31 appearances (17 starts, 14 sub) = strike rate of 41.93%
Overall - 19 goals in 67 appearances (28 starts, 39 sub) = strike rate of 28.36%
Barrowman:
08/09 (SPL) - 2 goals in 33 appearances (15 starts, 18 sub) = s/r of 6.06%
09/10 (SFL) - 1 goal in 8 appearances (2 starts, 6 sub) = s/r of 12.5%
Overall - 3 goals in 41 appearances (17 starts, 24 sub) = s/r of 7.31%
That's not a strike rate, which has already been explained. A strike rate is goals per shots, not goals per games.