How much is too much? That’s what the Yankees must be considering in their recent trade talks for Gerrit Cole. As the Daily News reported last week, a potential deal between the two teams could include prospects Clint Frazier, Chance Adams and Miguel Andujar — which could be a lot to give up for Cole — though nothing was said to be imminent. The 27-year-old righty, who cannot become a free agent until 2020, went 12-12 with a career-worst 4.26 ERA and 31 homers allowed in 203 innings last season. Cole had the best year of his career in 2015, when he went 19-8 with a 2.60 ERA and 11 homers allowed in 208 innings. But in 2016, he missed time due to elbow and triceps injuries and went 7-10 with a 3.88 ERA and seven homers allowed in 116 innings. Cole’s home run problem was particularly troubling. He surrendered all of 36 homers combined in his first four seasons in the majors (579.1 IP), which was among MLB's top clips of HR/9 IP (0.6). Last season, he gave up 31 homers in 203 innings (1.4). Is it an outlier or a sign of things to come — especially in an unforgiving ballpark like Yankee Stadium?