The left-handed reliever appears to be the leading candidate to replace struggling Joel Pineiro, with triple-A right-handers Trevor Bell and Jerome Williams and top prospect Garrett Richards also in mix.Reliever Hisanori Takahashi appears to be the leading candidate to replace struggling right-hander Joel Pineiro in the rotation, with triple-A right-handers Trevor Bell and Jerome Williams and double-A right-hander Garrett Richards also in the mix.