This one was found on the “Fixer Upper” blog called Magnolia market, courtesy of Chip and Joanna Gaines. Here’s the site with the malaphor:
This is a nice combo of “laid it on the line” (made something very clear) and “left it all on the field” (to commit wholly to something). Left and laid all the culprits here, I suspect. Also there are lines on most sports fields so that might have contributed to this mental hiccup. A big thanks to Jean Welch for spotting this one!