The Tigers stole all of 35 bases last year, last in the American League, while the Royals had a league-high 153.
"They didn't have to steal a lot of bases last year because they had some pretty efficient run-producers," Yost said.
The Royals skipper, of course, keeps track of the offseason movements of his rivals.
"Was I glad they got rid of Prince Fielder? Yeah, I was glad about that, but their pitching is very good," Yost said. "They lost a good one in [pitcher Bruce] Rondon, a pretty solid guy, like we lost a good one in Hoch."
Both Rondon and Royals pitcher Luke Hochevar are on the disabled list.
And the Tigers lost a crucial player when shortstop Jose Iglesias went on the DL with stress fractures of the legs.
"Yeah, you look at that and you say, 'That kid's a pretty slick shortstop.' And then you think to yourself: OK, what would that mean to us -- if we lost [Alcides] Escobar it'd be a huge blow," Yost said. "As a team that competes against them, you don't want to see anybody get hurt, but it helps us a little bit."
The Tigers also added Joe Nathan to be the closer, a shaky spot for them in recent years.
"He's a guy with great experience and that counts for a lot," Yost said.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.