i can see him effective at 3B, 1B, 2B, C, LF
Jays can carry Jansen, Martin, and a 3rd catcher in 2019
Hell, if Martin turns out to be effective at multiple positions and the bat returns, he might have trade value come July
Martin is still the more valuable MLB player, on many levels. He has a .345 OBP in a year his BABIP is .240. With a normal BABIP he's around 115 wrC+
Jansen should be perfectly fine C option tho