Boston Celtics head coach Brad Stevens understands the challenges in the Eastern Conference after several teams added to their already loaded rosters.

The Celtics currently sit in a tie for third in the East with the Indiana Pacers, with both teams trying to catch up to the Milwaukee Bucks and Toronto Raptors.

However, the two top teams made a significant improvement to their rosters prior to the NBA trade deadline as Milwaukee acquired Nikola Mirotic from the New Orleans Pelicans while Toronto landed Marc Gasol from the Memphis Grizzlies.

Of course, the Philadephia 76ers also made a huge move by adding Tobias Harris, which certainly adds to the already competitive landscape in the East.

But Stevens isn't exactly surprised with what lies ahead for the Celtics.

From ESPN's Tim Bontemps:

Brad Stevens on the other teams loading up atop the East: “Those teams were already really good … It’s going to be quite a challenge. As we knew it would be.”

Boston is playing perhaps its best basketball of the season right now having won 10 of their last 11 games, so perhaps Stevens' team shouldn't be all that concerned.

The Celtics will prepare for two interesting home matchups this week against the Los Angeles Lakers and Los Angeles Clippers.