Of that group of STEM majors not in STEM, how many do you think could work in a STEM field after going through a professional masters program? Clearly, some do,

Of that group of STEM majors not in STEM, how many do you think could work in a STEM field after going through a professional masters program? Clearly, some do, but it takes a lot of money and valuable time. If under greater pressure, I'd imagine a lot more established tech companies would recruit with a masters program in exchange for a several year commitment. Some places do, but if it were harder to recruit, it is a fair guess more places would. I'm not really sure what to think about those sorts of arrangements. If I were an employer, I'd greatly prefer skill-based immigration, excluding questions of exploitation, and that's the point, particularly when referring to STEM as a whole.