Let's be honest proven goal Scorers at a decent level are not going to be available in a mid season transfer window, especially on the money Motherwell has to spend.
Our markets are the lower / non league teams to try to find a player with potential and hope they step up and score a few, like Moult, Higdon, McDonald, and latterly Watt who all seemed to find Fir Park a great place to be. But for every success there are more failures who don't make it but that's how we operate, so give each player their chance then judge them on how good or Bad they were.