According to Jake Fischer of SI.com, the Raptors are "skeptical" about Valanciunas, which is why he was part of the package Toronto reportedly attempted to entice Detroit with.
The 24-year-old Valanciunas is averaging 12.4 points and a career-high 9.9 rebounds this season to go along with a personal-best performance from the free-throw line (85.2 percent).
Drummond, who is one year younger than the 7-foot Lithuanian, is putting up 14.6 points and 13.8 boards per contest. However, he is one of the league's worst free-throw shooters at 43.9 percent.
The former first-round pick out of UConn was selected to his first All-Star team in 2015-16, but ESPN.com's Zach Lowe recently reported that Detroit has quietly explored his value on the trade market. ESPN's Marc Stein also reported Tuesday that the Pistons will "not discourage" offers for Drummond ahead of the deadline.
Although Drummond may have been a more impactful acquisition than Ibaka, the fact that Toronto only had to surrender Terrence Ross and not Valanciunas likely earned it a better net gain in the deal.
The Raptors are currently fourth in the Eastern Conference at 33-24 after reaching the Eastern Conference Finals last season.
With star point guard Kyle Lowry able to hit free agency during the offseason, there is likely a sense of urgency north of the border to win now.
Trading for Ibaka should help in that regard, but Fischer added that the Raptors may not be done, as they are still on the lookout for another piece on the wing or in the frontcourt.