Northamptonshire bring in bowlers Jamie Overton and Luke Wood
Somerset's Jamie Overton has joined Northamptonshire on loan until 13 June, with Notts seamer Luke Wood returning for a similar loan spell.
Fast bowler Overton, 25, has played four times for Somerset this season and is still eligible for their One-Day Cup final on 25 May.
Wood, 23, was at the County Ground for the start of the Championship season and played against Middlesex.
He has taken 79 first-class wickets and returns for a four-game spell.
"The idea of having Jamie available to us is really exciting, he's a Lions bowler who's gone through the ranks very quickly," Northants boss David Ripley told the club website.
"We're disappointed with the amount of injuries at the moment, we've got four guys down from what we thought we were going to have, so the seam bowling resources are stretched."
Somerset will play Hampshire in the One-Day Cup final.
Somerset director of cricket Andy Hurry added: "We've made an impressive start to this year's County Championship, and whilst Jamie is certainly in contention for selection, we can't guarantee him a starting place at present.
"Therefore, we feel both he and the club would benefit from him playing competitive first XI red-ball cricket."