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信頼を築く4つの柱:吉本泰輔が説く「学び」という終わなき旅 | The Four Pillars of Trust: Daisuke Yoshimoto on the Lifelong Journey of Learning
©️Julia Bellini

信頼を築く4つの柱:吉本泰輔が説く「学び」という終わなき旅 | The Four Pillars of Trust: Daisuke Yoshimoto on the Lifelong Journey of Learning

本稿は、トロントを拠点にラプターズ905をはじめとするGリーグの最前線を追う現地ライター、Teru Ikedaによる取材をもとに、Chris Sasakiが編集・翻訳を手掛けました。現地発のリアルな視点と、言葉の壁を越えた深みのあるストーリーをお届けします。

  • The Playmaker by The Playmaker
    The Playmaker The Playmaker
    • 2026/02/28
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    Introduction

    グランドラピッズ・ゴールドのアシスタントコーチ(以下AC)であり、男子バスケットボール日本代表ACにも就任した吉本泰輔(よしもとだいすけ)にとって、世界最高峰のバスケットボールの現場で「成長」とは何を意味するのか。恩師トム・ティボドーの傍らでNBAの最前線を経験してきた彼は、Gリーグを「降格の場」ではなく、自らの役割を拡張するための「真の試練の場」と定義する。揺るぎない信頼を築くための4つの柱、そして苦しみの中にこそ宿る美しき哲学。歩みを止めない吉本の飽くなき探究心と、泥の中でもがきながら道を切り拓く河村勇輝選手へ贈る、魂のエール。

    For Daisuke Yoshimoto—newly appointed assistant coach for the Japan Men's National Team—true growth in the world’s most competitive basketball environment has a specific meaning. A veteran of the NBA sidelines under mentor Tom Thibodeau, Yoshimoto argues that the G League is no place for demotion; it is a vital "proving ground" for expansion. From the four fundamental pillars of unshakable trust to the profound aesthetics found within the grind, he shares an unyielding philosophy on learning—and a heartfelt message for Yuki Kawamura as he carves his own path through the mud.


    泥の中にある美しさ:吉本泰輔が語る「Gリーグ」という成長の場

    吉本泰輔は、英語で適切な言葉を探しながら、話の途中でふと会話を止めた。そして「英語では何て言いますか?」と尋ねつつ「泥の中にも美しさがある?」と続ける。

    彼はコートへの復帰を果たし、間近で見たばかりの河村勇輝について話していたが、それは同時に自分自身のキャリアと重ねている言葉だったかもしれない。挫折に見える状況にこそ機会を見い出すことが出来る吉本は、全米大学体育協会(NCAA)3部の選手からトム・シボドーHCの右腕とも言えるアシスタントコーチとなったのだ。

    Beauty in the Mud: Daisuke Yoshimoto on the G League as a Proving Ground

    Daisuke Yoshimoto paused mid-sentence, searching for the right words in English.

    "What do you say in English?" he asked. "The beauty in the mud?"

    He was talking about Yuki Kawamura's recovery from injury, but he could have been describing his own career. From Division III player to NBA assistant coach under Tom Thibodeau, Yoshimoto has built his reputation by finding opportunity where others see setbacks.

    「降格」ではない。役割を広げるための大きなチャンス

    Gリーグ、ラプターズ905のホームアリーナの廊下の中で彼に、NBAからGリーグに「下りてきた」経験について尋ねた。

    「ここに“下りてきた”とは思っていません」と彼は即座に答えた。「自分にとって、より大きな役割を担う機会に過ぎないと思います」

    機会をラベル(外側からの見え方)や立場で測らない——その姿勢こそが吉本のキャリアを形作ってきた基礎だろう。今彼は、グランドラピッズ・ゴールドのアシスタントコーチとして、彼は練習の指揮、ゲームプランの作成、フィルムセッションの主導など、より大きな役割を積極的に担っている。Gリーグは組織規模も小さく、リソースも限られているが、吉本にとってそれは後退では無く、成長のチャンスなのだ。

    「スタッフの人数という点では、NBAとはまったく異なる体制です」と彼は説明する。「NBAと比べると、Gリーグは小規模です。」しかし、規模の大小は優劣を決めるものではない。取材当日、ゴールドにはデンバー・ナゲッツ (ゴールドの親チーム)から配属されたカーティス・ジョーンズや身長218 cmのモーゼス・ブラウンが出場していた——いずれもNBA入りを狙う選手たちであり、吉本は彼らが次のレベルに到達するために何が必要か、常に対話することを楽しんでいるという。そして彼は、同じような会話を日本代表選手たちとも交わすことに大きな期待を寄せている。

    Not a "Demotion," but a Grand Opportunity to Expand One's Role

    When we met in the tunnel of the Raptors 905 home arena, I asked him to summarize his experience being down in the G League from the NBA.

    "I don't consider it being 'down here,'" he said immediately. "It's just an opportunity for me to have a bigger role."

    That mindset—refusing to measure opportunities by status—has defined Yoshimoto's career. As an assistant coach with the Grand Rapids Gold, he's embraced a bigger role running practices, creating game plans, and leading film sessions. The G League setup is smaller, the resources fewer, but for Yoshimoto, that's not a step back. It's a chance to grow.

    "The NBA is a totally different setup in terms of the number of staff," he explained. "The G League is a lot smaller." But smaller doesn't mean lesser. On the day we spoke, Curtis Jones was on assignment from Denver and 7-foot-2 Moses Brown suited up to play—players on the NBA bubble. Yoshimoto has enjoyed talking to them about what they need to get there, conversations he anticipates having with Japan's national team players after recently being appointed an assistant coach.

    恩師トム・シボドーから学んだ「信頼を築く4つの柱」

    吉本の哲学は、シカゴからミネソタ、そしてニューヨークへと背中を追い続けたシボドーから直接学んだものが大きい。シボドーの下で、吉本はビデオルームからキャリアをスタートさせ、その後「大きな飛躍」を遂げてアシスタントコーチとなった。だが、その転身は決して容易ではなかった。従来の型にはまらない経歴を持つ彼に対し、選手たちの信頼を勝ち取るため、壁を乗り越える必要があった。

    そんな彼に、シボドーは一つの指針を示した。「コーチはいつも、自分らしくあれと励ましてくれました」と吉本は振り返る。

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